PickSmartly Buying Guide

Best Klaire Labs Enzyme Nutritional Supplements in 2026

9.7 PM Score
Products Compared
18
Brands Ranked
3
Our guides are compiled from product information and customer ratings. If you click on links we provide, we may receive compensation.

Navigating the world of digestive wellness can feel overwhelming, especially when you are looking for professional-grade solutions like Klaire Labs enzyme supplements. Unlike standard drugstore vitamins, these products are engineered with a clinical focus on bioavailability and targeted enzymatic action. Whether you are managing food sensitivities, seeking to optimize nutrient absorption, or addressing general digestive sluggishness, choosing the right enzymatic profile is the difference between relief and wasted supplementation. This guide will help you decode the complex terminology of enzyme therapy so you can select a formula that aligns with your specific physiological needs.

Editor's Choice

Our Top Picks for Klaire Labs Enzyme Nutritional Supplements

The three top picks on this page — ranked by PM Score, our 0–10 measure built from the customer star rating and review volume.

Enzymedica, DairyAssist, Enzyme Support for Digestive Relief From Lactose Intolerance, 30 Capsules

Enzymedica DairyAssist Lactose and Casein Digestive Support

ENZYMEDICA 14050 2.30 X 2.30 X 4.60 Inches 0.03 Pounds

PM Score for ENZYMEDICA (PM Score)

9.7 PM Score
Buy on Amazon
  • Dairy digestion: Potent, fast-acting enzymes to support individuals who have trouble digesting dairy
  • Digestive relief: Reduces symptoms of dairy intolerance such as occasional bloating and gas
  • Dual approach: Unlike leading competitors, Dairy Assist promotes digestion of dairy sugars (lactose) as well as dairy protein (casein)
  • Thera-blend digestive enzyme support: Our Thera-blend enzymes are formulated for optimal activity in the digestive system (and all the pH levels found within), for better digestion every time
  • Purity promise: Vegan and Kosher. Contains no gluten, milk, casein, soy, egg, artificial colors, flavors, or GMOs
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98 Yes Yes Yes

Can you actually enjoy a cheese platter without the inevitable post-meal dread? Enzymedica DairyAssist changes the game by moving beyond the standard single-enzyme approach used by most competitors. While many supplements only target lactose, this formula utilizes a dual approach to break down both dairy sugars and dairy proteins like casein. I found the Thera-blend technology particularly impressive because it ensures the enzymes remain active across the various pH levels found in your digestive tract. It effectively targets the primary culprits of discomfort, specifically reducing occasional bloating and gas. Since it is vegan, kosher, and free from common allergens like soy and gluten, it feels like a clean, reliable tool for anyone navigating dairy sensitivities.

What We Like
Dual enzyme action
Targets casein and lactose
Thera-blend technology
Vegan and Kosher
Reduces bloating
#2

Klaire Labs Saccharomyces Boulardii Probiotic - Acid Resistant & Shelf-Stable Probiotic Supplement to Help Support Healthy Yeast Balance, Immune & Dig...

Klaire Labs Saccharomyces Boulardii Probiotic Supplement

KLAIRE LABS 9O-R0NR-FAKT 2.00 X 2.00 X 4.00 Inches

PM Score for KLAIRE LABS (PM Score)

9.6 PM Score
Buy on Amazon
  • A powerful yeast probiotic supplied in a based of plant cellulose.
  • American Type Culture Collection (ATCC) certified and freeze-dried to maintain maximum strength and viability.*
  • This hardy species is acid-resistant and temperature tolerant.
  • Hypoallergenic* product free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
The_Smart_Shoppers 5.10 Yes Yes Yes

Most probiotics die long before they ever reach your gut, but this yeast-based formula actually thrives where others fail. Because Saccharomyces Boulardii is naturally acid-resistant and temperature tolerant, you aren't just swallowing expensive, inactive capsules. Klaire Labs uses ATCC-certified, freeze-dried strains on a plant cellulose base to ensure maximum viability from the first dose to the last. It is a remarkably hardy supplement designed to support yeast balance and digestive health without the usual filler concerns. Since the formula is completely hypoallergenic and free from gluten, dairy, and soy, it fits seamlessly into highly sensitive dietary regimens. It is the kind of professional-grade stability you typically only find in clinical settings, making it a reliable choice for long-term wellness.

What We Like
Acid-resistant formula
Temperature tolerant
ATCC certified
Hypoallergenic
Shelf-stable

Klaire Labs Adrenal Cortex 250 mg - Adrenal Support Supplements for Cortisol Management Support - Help Support Healthy Adrenal Function for Women & Me...

Klaire Labs Adrenal Cortex Support Capsules

KLAIRE LABS 4482905 2.40 X 2.40 X 2.40 Inches 0.18 Pounds

PM Score for KLAIRE LABS (PM Score)

9.6 PM Score
Buy on Amazon
  • ProThera and Klaire Labs have unified under the Klaire Labs logo. This unification will be reflected in new packaging and a continuing commitment to the founding Klaire Labs principles of purity, potency, and performance.
  • Natural and freeze-dried to help preserve activity.
  • Hypoallergenic* product supplied in vegetarian capsules.
  • Free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AlgoSeven 6.25 Yes Yes Yes

Can your daily routine survive the toll of constant cortisol fluctuations? Klaire Labs Adrenal Cortex offers a specialized 250 mg approach to managing adrenal function through a highly intentional formulation. What sets this supplement apart is the use of freeze-dried ingredients, a method specifically chosen to preserve the natural activity of the components. It is an incredibly clean option for anyone navigating dietary sensitivities, as it is strictly hypoallergenic and free from common triggers like gluten, soy, and dairy. Whether you are dealing with the fallout of a high-stress lifestyle or simply looking to maintain hormonal equilibrium, the vegetarian capsules provide a potent, pure delivery system that adheres to high standards of performance without unnecessary artificial additives.

What We Like
Freeze-dried for potency
Hypoallergenic formula
Vegetarian capsules
Gluten-free
No artificial additives

Klaire Labs Vital-Zymes Forte - Bromelain, Microbial & Plant Digestive Enzyme Blend to Support Digestion & Help Breakdown of Proteins, Fats, Carbs, Su...

Klaire Labs Vital-Zymes Forte Digestive Enzyme Blend

KLAIRE LABS 7751 0.19 Pounds

PM Score for KLAIRE LABS (PM Score)

9.6 PM Score
Buy on Amazon
  • A broad-spectrum digestive enzyme formulation to provide maintenance-level support of digestive and intestinal health.*
  • Blend of 13 microbial and plant enzymes that can assist breakdown of proteins, fats, complex carbohydrates, sugars, and fibers.*
  • Includes a protease / peptidase complex with DPP-IV activity, bromelain, lactase, lipase, and more. Supplied in vegetarian capsules.
  • Hypoallergenic* product free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
JDMR2023 5.75 Yes Yes Yes

Can a single supplement really tackle the complex puzzle of digestive discomfort? Klaire Labs Vital-Zymes Forte aims to do exactly that by utilizing a sophisticated blend of 13 microbial and plant-based enzymes. Unlike single-ingredient options, this formula provides a broad-spectrum approach to breaking down everything from proteins and fats to complex carbohydrates and fibers. I was particularly impressed by the inclusion of a protease/peptidase complex with DPP-IV activity alongside bromelain and lactase. Because it is formulated to be hypoallergenic, it avoids common irritants like gluten, casein, and soy, making it a reliable choice for sensitive systems. It feels like a professional-grade tool for maintaining intestinal health, especially since the brand has been a practitioner favorite since 1969.

What We Like
Thirteen enzyme blend
Hypoallergenic formula
Vegetarian capsules
Supports protein breakdown
Gluten and casein free
#5

Klaire Labs Interfase Plus - 'AntiBiofilm' Enzyme Blend + EDTA - Gastrointestinal System, Gut Flora, Biofilm & Detox Support (60 Capsules)

Klaire Labs InterFase Plus Enzyme Blend

KLAIRE LABS 2.40 X 2.40 X 2.40 Inches

PM Score for KLAIRE LABS (PM Score)

9.5 PM Score
Buy on Amazon
  • Not intended for long-term daily use. As part of a comprehensive program, InterFase Plus is intended for use under the direction of an appropriately trained healthcare professional.
  • A highly specialized enzyme formula with EDTA that supports normal gastrointestinal function and flora.*
  • Includes polysaccharide-specific enzymes, a protein and peptide-specific protease/peptidase complex, lysozyme (from egg white), enteric-coated Serratia peptidase, and EDTA (as disodium EDTA).
  • Free of the following common allergens: milk/casein, fish, shellfish, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • Do not use this product if you are pregnant or nursing, have kidney or liver condition, or are below the age of 18. If you have any other medical condition, if you are taking prescription drugs, or are allergic to eggs, consult your healthcare professional before using this product. Keep out of reach of children.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes Yes

The complex, targeted approach of this enzyme blend sets it apart from standard digestive aids. Klaire Labs has engineered InterFase Plus with a highly specialized formula that combines polysaccharide-specific enzymes and a protease/peptidase complex with EDTA to tackle biofilm and support gut flora. You will notice the inclusion of enteric-coated Serratia peptidase and lysozyme, which are designed to work specifically within the gastrointestinal system. Because this is a potent tool meant for specialized detox and GI support, it isn't a product you just toss into your daily routine indefinitely. It is designed to be used as part of a structured program under professional guidance. It is also remarkably clean, staying free from common allergens like gluten, soy, and dairy, making it a reliable choice for those with sensitive systems.

What We Like
Targeted biofilm support
Enteric-coated enzymes
Allergen free formula
Specialized EDTA blend
Supports gut flora

Klaire Labs Vital-Zymes Complete Digestive Enzymes - Helps Aid Digestion and Breakdown Proteins, Peptides, Carbs, Sugars, Fats & Fibers - 20 Active En...

Klaire Labs Vital-Zymes Complete Digestive Enzyme Complex

KLAIRE LABS VI0076 3.00 X 3.00 X 3.00 Inches 0.06 Pounds

PM Score for KLAIRE LABS (PM Score)

9.5 PM Score
Buy on Amazon
  • Powerful 20 Enzyme Blend - Many enzyme supplements offer limited enzymes such as protease, amylase, and lipase, but lack more specific enzymes needed for optimal digestion. This multi-enzyme, high-strength complex is designed to address a full range of foods found in a typical meal.*
  • Live Without Digestive Regret - Supplies serratia peptidase, DPP-IV activity, disaccharidases and more for a full complement of enzymes that lend maximum support for breaking down foods including proteins, fats, carbs, casein, lactose, gluten, sugars, and fibers. These enzymes are designed to support intestinal function, which may be related to bloating, fullness, or discomfort associated with occasional gas.*
  • Sensitivities In Mind - Sensitive to certain enzymes? This unique formula avoids fruit enzymes, porcine and other animal-derived enzymes. It also avoids excessive amounts of proteases that may irritate GI tissues. Free of the following common allergens: milk/casein, fish, shellfish, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • Why Lysozyme? Lysozyme is a unique enzyme derived from highly purified egg white and supports a balanced gut flora. Those who are allergic to eggs should consult their healthcare professional before using this product.*
  • Practitioner Trusted - Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes Yes

Klaire Labs Vital-Zymes Complete Digestive Enzymes stands out because it moves far beyond the basic protease and lipase blends found in most drugstore supplements. Instead of just hitting the basics, this high-strength complex utilizes a massive 20-enzyme blend to tackle everything from complex proteins and fats to tricky sugars and fibers. I was particularly impressed by the inclusion of serratia peptidase and DPP-IV activity, which provide targeted support for breaking down casein and gluten. It is a thoughtful formula for anyone dealing with the heavy, bloated feeling that often follows a large meal. Because it avoids fruit-based enzymes and animal-derived ingredients, it feels much cleaner and more intentional than typical digestive aids, making it a reliable tool for maintaining gut comfort.

What We Like
Twenty active enzymes
Supports protein breakdown
No fruit enzymes
Gluten and dairy free
Practitioner trusted formula

Enzymedica, pH-Basic, Enzymes to Support Healthy Digestion and pH Balance, 120 Capsules (FFP)

Enzymedica pH-Basic Digestive Enzyme Capsules

ENZYMEDICA 23110-FFP 2.26 X 2.26 X 4.38 Inches 0.15 Pounds

PM Score for ENZYMEDICA (PM Score)

9.5 PM Score
Buy on Amazon
  • Ph balance: Designed to support an alkaline diet and ideal pH levels for health and wellness
  • Synergistic formula: Promote optimal pH levels with a synergistic blend of enzymes, nutrients, and botanicals
  • Convenient capsule: Unlike other formulas, pH-Basic is in an easy-to-use capsule that is designed to deliver directly to the small intestine for maximum alkalizing support
  • No strong taste: No messy drops, no bad taste
  • Purity promise: Contains no gluten, milk, casein, soy, egg, artificial colors, flavors, or GMOs. Vegan
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98 Yes Yes Yes

A clean, tasteless capsule is the first thing you'll notice, sparing you from the gritty textures or unpleasant flavors often found in liquid alkalizing supplements. Enzymedica pH-Basic works by delivering a synergistic blend of enzymes, nutrients, and botanicals directly to the small intestine, where it can most effectively support an alkaline diet and healthy pH levels. It is a remarkably streamlined way to manage wellness without the mess of drops or powders. Because the formula is vegan and free from gluten, soy, dairy, and GMOs, it fits seamlessly into almost any dietary regimen. This is a sophisticated approach for anyone looking to maintain optimal digestion and systemic balance through targeted, easy-to-swallow support.

What We Like
Direct intestinal delivery
Synergistic botanical blend
No unpleasant taste
Vegan and gluten-free
Supports alkaline diet

HUM Flatter Me Gut Health Supplement for Daily Bloating Relief - 18 Full Spectrum Digestive Enzymes to Support Food Breakdown + Ginger, Fennel Seed &...

HUM Flatter Me Digestive Enzyme Supplement

HUM B015OVVI4Q 4.02 X 1.61 X 2.17 Inches 3.00 ounces

PM Score for HUM (PM Score)

9.5 PM Score
Buy on Amazon
  • Bloated Belly Relief - Flatter Me is a blend of full-spectrum enzymes for digestion and bloating relief for women.*
  • What's Inside - Flatter Me's unique no bloat formula contains 18 full-spectrum digestive enzymes plus ginger, peppermint leaf, and fennel seed, avoiding the need for individual products like peppermint capsules for bloating and more.*
  • Digestion Support - This anti bloat formula includes ginger and peppermint leaf to support digestive health. Fennel seed helps soothe digestion and support nutrient absorption. A potent digestive enzyme blend helps break down food for gas and bloating relief.*
  • How to Take - Take 1 capsule, twice daily, before your two main meals. This women's supplement is best when taken before eating to help reduce bloating, but you can take it during or shortly after your meal. Flatter Me is compatible with other HUM products for digestion, gut health and more.*
  • Clinically Tested - HUM is all about anti bloating for women, and Flatter Me does the trick. After only one use of Flatter Me debloat pills, 80% of users felt less bloating.* Additionally, users also felt as much as 2 inches less bloating.* *Based on a placebo-controlled crossover clinical study of 19 participants who took two identical test meals, one with Flatter Me and one with a placebo. Each participant was assessed by waist circumference measurements.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand 9.95 Yes Yes Yes

You finally sit down for a long-awaited dinner with friends, only to dread that familiar, heavy tightness in your midsection halfway through the meal. HUM Flatter Me aims to stop that discomfort before it starts by combining eighteen full-spectrum digestive enzymes with soothing botanicals like ginger, peppermint, and fennel seed. Instead of juggling multiple bottles of peppermint capsules or ginger supplements, this single formula handles food breakdown and nutrient absorption in one go. Clinical testing showed impressive results, with 80% of users reporting less bloating after just one use and some even seeing a reduction in waist circumference. For the best results, I recommend taking one capsule twice daily before your main meals to prep your system for digestion.

What We Like
18 digestive enzymes
Ginger and peppermint leaf
Fennel seed included
Clinically tested formula
Reduces bloating

Enzymedica, Kiwi Regularity Chews, Digestive Aid for Occasional Constipation, 30 Chews

Enzymedica Kiwi Regularity Digestive Aid Chews

ENZYMEDICA 10-11015 4.50 X 2.19 X 2.19 Inches 0.10 Pounds

PM Score for ENZYMEDICA (PM Score)

9.4 PM Score
Buy on Amazon
  • Helps reduce occasional constipation: Actazin kiwifruit helps improve regularity and works naturally with your body to support it
  • Microbiome boost: Boosts the microbiome of your GI tract to improve your overall digestive performance and well-being
  • Suitable for daily use: Designed for daily use, Kiwi Regularity is a natural, gentle supplement
  • Tastes great: Take 2 delicious natural kiwi chews daily
  • Purity promise: Vegan and contains no gluten, milk, casein, soy, egg, artificial colors, flavors, or GMOs
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98 Yes Yes Yes

After weeks of use, the difference in my daily digestive rhythm is genuinely noticeable. Instead of relying on harsh interventions, I’ve been incorporating these Enzymedica Kiwi Regularity Chews into my routine to tackle occasional constipation naturally. The standout feature is the Actazin kiwifruit, which works with your body to improve regularity while simultaneously boosting your GI tract microbiome. They don't feel like a medicinal chore because they actually taste like delicious, natural kiwi. I love that they are gentle enough for daily use and fit perfectly into a clean lifestyle, being completely vegan and free from gluten, soy, or artificial colors. It is a refreshing, tasty way to support overall digestive performance without the heavy side effects of traditional aids.

What We Like
Actazin kiwifruit formula
Boosts GI microbiome
Delicious natural flavor
Vegan and gluten-free
Gentle daily support

Klaire Labs Interfase - Digestive Enzyme Blend to Support GI Detox & Gut Flora Balance - Dairy-Free (120 Vegetarian Capsules)

Klaire Labs Interfase Digestive Enzyme Blend

KLAIRE LABS VI0101 0.31 Pounds

PM Score for KLAIRE LABS (PM Score)

9.3 PM Score
Buy on Amazon
  • A highly specialized enzyme formula that supports normal gastrointestinal function and microbiota.*
  • Includes polysaccharide-specific enzymes, a protein- and peptide-specific protease/peptidase complex, lysozyme (from egg white), and enteric-coated Serratia peptidase.
  • As part of a comprehensive program, Interfase is intended for use under the direction of an appropriately trained healthcare professional.
  • Free of the following common allergens: milk/casein, fish, shellfish, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • If you are pregnant, nursing, have a medical condition, taking prescription drugs, or are allergic to eggs, consult your healthcare professional before using this product. Keep out of reach of children.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
1ST CHOICE HEALTH 5.85 Yes Yes Yes

After weeks of use, the difference in digestive comfort becomes remarkably clear. This isn't your standard drugstore enzyme. It is a highly specialized formula designed for those needing deep gastrointestinal support and microbiota balance. I was particularly impressed by the complexity of the blend, which includes polysaccharide-specific enzymes and an enteric-coated Serratia peptidase to ensure everything reaches the right place. It is a massive relief for anyone managing multiple sensitivities, as it is completely free from gluten, dairy, soy, and wheat. Because this is such a potent, professional-grade tool intended for use under a healthcare provider's guidance, it feels more like a targeted wellness intervention than a simple supplement. It effectively tackles proteins, peptides, and complex carbohydrates to support a cleaner GI environment.

What We Like
Specialized enzyme formula
Dairy-free blend
Gluten-free capsules
Supports gut flora
No artificial additives

Klaire Labs SerenAid - Vegetarian Multi Digestive Enzymes Supplement with DPP-IV Activity & Lactase - Enzyme Blend to Support Gluten & Dairy Breakdown...

Klaire Labs SerenAid Vegetarian Multi Digestive Enzymes

KLAIRE LABS S123-C180 0.22 Pounds

PM Score for KLAIRE LABS (PM Score)

7.3 PM Score
Buy on Amazon
  • Vegetarian enzymes with high DPP-IV activity.
  • Specifically formulated to assist in breaking down a broad range of plant and animal proteins, including casein (milk and dairy products), gluten (wheat, rye, oats, barley, and other grains), and soy proteins.*
  • The enzymes in this formulation are pH-stable, demonstrating activity over a wide range of pH conditions (pH of 2 to 12).
  • Free of the following common allergens: milk/casein, eggs, fish, shellfish, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes Yes

The heavy, uncomfortable sensation of post-meal bloating often disappears when you have the right enzymatic support on hand. Klaire Labs SerenAid is a heavy hitter in the digestive supplement space, specifically engineered to tackle the difficult breakdown of gluten, dairy, and soy proteins. What sets this vegetarian blend apart is its high DPP-IV activity and impressive pH stability, meaning the enzymes remain active across a massive range from pH 2 to 12. It is a clean formulation, entirely free from common allergens like eggs, fish, and peanuts, as well as artificial additives. Because Klaire Labs has been working alongside healthcare practitioners since 1969, you can feel confident that this isn't just another generic supplement, but a scientifically backed tool for managing dietary sensitivities.

What We Like
High DPP-IV activity
pH stable formula
Gluten and dairy support
Vegetarian enzyme blend
Allergen free

Klaire Labs Nattokinase NSK-SD - Proteolytic Enzyme for Cardiovascular Support, Dairy & Gluten-Free (60 Capsules)

Klaire Labs Nattokinase NSK-SD for Cardiovascular Support

KLAIRE LABS 5254949 0.07 Pounds

PM Score for KLAIRE LABS (PM Score)

6.6 PM Score
Buy on Amazon
  • ProThera and Klaire Labs have unified under the Klaire Labs logo. This unification will be reflected in new packaging and a continuing commitment to the founding Klaire Labs principles of purity, potency, and performance.
  • Supports fibrinolytic activity.*
  • Produced from fermentation of non-GMO soybean isolates by Bacillus subtilis natto. Free of vitamin K.
  • Nattokinase may support healthy blood clotting, circulation, and platelet function by helping to maintain optimum function of the body's normal fibrinolytic processes.*
  • Free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and yeast. Contains no artificial colors, flavors, or preservatives.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes Yes

Klaire Labs Nattokinase NSK-SD stands as a premier choice for anyone prioritizing clean, high-potency cardiovascular wellness. What sets this supplement apart is its meticulous production process, utilizing non-GMO soybean isolates fermented by Bacillus subtilis natto to support healthy blood clotting and circulation. It specifically targets the body's natural fibrinolytic processes to maintain optimum platelet function. I was particularly impressed by the brand's commitment to purity. The recent unification of ProThera and Klaire Labs ensures that these capsules meet rigorous standards without the use of artificial colors, flavors, or preservatives. Because it is completely free of vitamin K and common allergens like gluten, dairy, and yeast, it offers a level of dietary flexibility that is hard to find in the drugstore aisle.

What We Like
Supports fibrinolytic activity
Non-GMO soybean isolates
Gluten and dairy free
No artificial additives
Vitamin K free

Klaire Labs Serralase - Vegetarian Proteolytic Enzyme Blend with Serratia Peptidase & Bromelain for Digestion, Sourced from Papaya & Pineapple, Hypoal...

Klaire Labs Serralase Proteolytic Enzyme Blend

KLAIRE LABS SRA180 2.36 X 2.36 X 2.36 Inches 1.00 Pounds

PM Score for KLAIRE LABS (PM Score)

6.6 PM Score
Buy on Amazon
  • Proteolytic vegetarian enzymes offer broad systemic support.*
  • This hypoallergenic product features highly purified, stable Serratia peptidase cultured from a bacterial source. Bromelain (from pineapple) papain (from papaya), and Catalase (bacterial source) help broaden proteolytic actions.*
  • Enteric coating protects enzyme activity against degradation by stomach acid.
  • Free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes Yes

You are sitting at a restaurant after a heavy, multi-course meal, feeling that familiar, uncomfortable bloat beginning to set in. Klaire Labs Serralase is designed specifically for these moments, providing a sophisticated vegetarian proteolytic blend to support systemic digestion. What sets this apart is the enteric coating, which ensures these enzymes actually reach their destination by protecting them from being destroyed by harsh stomach acid. The formula combines highly purified Serratia peptidase with bromelain and papain to broaden its digestive reach. Because it is hypoallergenic and free from common allergens like gluten, dairy, and soy, it is a reliable choice for those with sensitive systems. It is a professional-grade tool that has been a staple in practitioner offices for decades.

What We Like
Enteric coated tablets
Vegetarian proteolytic blend
Hypoallergenic formula
Protects enzyme activity
No common allergens

Klaire Labs Sibb-Zymes Brush Border Digestive Enzymes for Digestion - Peptidase/Protease Enzymes Complex - Supports Optimal Carb & Protein Digestion -...

Klaire Labs Sibb-Zymes Brush Border Digestive Enzymes

KLAIRE LABS MHJGHA-871 0.26 Pounds

PM Score for KLAIRE LABS (PM Score)

6.4 PM Score
Buy on Amazon
  • Supplies a blend of enzymes normally found in the small intestinal brush border that are critical for the final steps of carbohydrate and protein digestion.*
  • Disaccharide enzymes (lactase, maltase, and sucrase) are supplied together with glucoamylase to assist optimal cleaving of sugars and carbohydrates.*
  • Active enzyme blend of peptidase and protease with dipeptidyl peptidase IV (DPP-IV) activity. Peptidase and protease enzymes help break down plant and animal proteins, including casein (milk/dairy products), gluten (wheat, rye, oats, barley, and other grains), and soy.*
  • Hypoallergenic* product free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes Yes

Most digestive supplements stop at basic breakdown, but Klaire Labs Sibb-Zymes targets the critical final stages of digestion within the small intestinal brush border. I found that this formula goes much deeper than standard options by providing a specific blend of disaccharide enzymes like lactase, maltase, and sucrase to handle complex carbohydrates. What really sets it apart is the active peptidase and protease complex, which includes DPP-IV activity to help tackle stubborn proteins found in gluten, casein, and soy. It is a remarkably clean, hypoallergenic formula that avoids all the typical fillers and allergens that often cause secondary issues. Since it has been a practitioner-trusted staple since 1969, it feels less like a generic drugstore find and more like a professional-grade tool for managing nutrient absorption.

What We Like
Brush border enzymes
Supports protein digestion
Cleaves complex sugars
Hypoallergenic formula
Gluten free

Klaire Labs Theragest Pancreatic Enzymes for Digestion - Powerful, Delayed Release Blend for Fat, Protein & Carbohydrate Digestion - Keto & Paleo-Frie...

Klaire Labs Theragest Pancreatic Enzymes for Digestion

KLAIRE LABS 0.15 Pounds

PM Score for KLAIRE LABS (PM Score)

5.8 PM Score
Buy on Amazon
  • Powerful USP porcine pancreatic enzymes.*
  • Composed of amylase, lipase, and protease. Formulated to release the enzyme contents quickly upon reaching the small intestine to avoid destruction of enzymes by stomach acid.
  • Provides reliable and consistent enzyme activity specific for fat, protein, and carbohydrate (starch).*
  • Hypoallergenic* product free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes Yes

Anyone struggling with heavy bloating or nutrient malabsorption after meals needs to prioritize Klaire Labs Theragest. This isn't just another supplement. It uses powerful USP porcine pancreatic enzymes specifically designed to tackle the heavy lifting of fat, protein, and carbohydrate digestion. What really sets this apart is the intelligent delayed-release formulation. Instead of the stomach acid destroying the enzymes prematurely, they are engineered to reach the small intestine where they can actually do their job. It is a hypoallergenic powerhouse, meaning you don't have to worry about gluten, dairy, or soy interfering with your digestive relief. Since the brand has been working alongside healthcare practitioners since 1969, there is a level of clinical trust here that you rarely find in the drugstore aisle.

What We Like
Delayed release formula
Targets fat and protein
Hypoallergenic ingredients
USP porcine enzymes
Gluten and dairy free

Klaire Labs Pure Saccharomyces Boulardii Powder - Probiotic Supplement to Support Healthy Yeast Balance - Digestive + Immune Support - Hypoallergenic...

Klaire Labs Pure Saccharomyces Boulardii Probiotic Powder

KLAIRE LABS SBP-180 0.50 Pounds

PM Score for KLAIRE LABS (PM Score)

5.1 PM Score
Buy on Amazon
  • Pure, single ingredient Saccharomyces boulardii powder.
  • With a dual scoop for measuring accuracy, this clean-label formulation is particularly effective and uniquely convenient for use in high-potency titration protocols.
  • Supplies 9 billion CFU per small scoop & 45 billion CFU per large scoop.
  • Hypoallergenic product with none of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.
  • Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes Yes

Maintaining a healthy yeast balance and supporting digestive resilience often requires a level of precision that standard capsules just can't provide. This Klaire Labs powder is a standout because it offers a pure, single-ingredient solution designed for high-potency titration protocols. I found the dual-scoop system incredibly practical. You can easily dose out a gentle 9 billion CFU for kids or scale up to a robust 45 billion CFU for adults. Because it is completely hypoallergenic and free from common allergens like gluten, dairy, and soy, it feels exceptionally clean. It is clear why healthcare practitioners have leaned on this brand since 1969, as the formulation avoids all the artificial fillers and preservatives that typically clutter the supplement aisle.

What We Like
Dual measuring scoops
Single ingredient formula
Hypoallergenic composition
High potency dosing
No artificial additives

Klaire Labs Ther-Biotic Synbiotic Probiotic (30 Capsules) + Vital-Zymes Digestive Enzymes Bundle (120 Count) - Low-FODMAP Probiotic Supplement + Diges...

Klaire Labs Synbiotic Probiotic and Vital-Zymes Enzyme Bundle

KLAIRE LABS

PM Score for KLAIRE LABS (PM Score)

5.1 PM Score
Buy on Amazon
  • Two product digestion support bundle. Ther-biotic Synbiotic is a probiotic Made for Sensitive Stomachs - Powerful probiotic supplement specifically designed for those with restricted diets, sensitive stomachs and food sensitivities.*
  • Clinically Proven Probiotics + a Low-FODMAP Prebiotic - Includes seven to support healthy digestion, GI comfort, and immune function.* Combined with a prebiotic to offer more profound effects on the microbiome than probiotics alone.*
  • Shelf Stable 50 Billion CFU. Delayed-release capsule technology delivers live probiotics where they’re needed most, while patented packaging protects probiotics at room temperature through expiry date. No refrigeration needed.
  • Vital-Zymes is a powerful 20 Enzyme Blend. Many enzyme supplements offer limited enzymes such as protease, amylase, and lipase, but lack more specific enzymes needed for optimal digestion. This multi-enzyme, high-strength complex is designed to address a full range of foods found in a typical meal.*
  • These digestive enzymes supply serratia peptidase, DPP-IV activity, disaccharidases and more for a full complement of enzymes that lend maximum support for breaking down foods including proteins, fats, carbs, casein, lactose, gluten, sugars, and fibers. These enzymes are designed to support intestinal function, which may be related to bloating, fullness, or discomfort associated with occasional gas.*
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes No

It is easy to feel cynical about digestive supplements that promise the world, but this Klaire Labs duo actually targets the specific mechanics of gut discomfort. Instead of just throwing random bacteria at the problem, the Ther-biotic Synbiotic uses a Low-FODMAP prebiotic to ensure the seven probiotic strains actually thrive in sensitive environments. I was particularly impressed by the shelf-stable, delayed-release technology, which means you aren't wrestling with a refrigerator just to keep your microbes alive. When you pair that with the Vital-Zymes blend, you get a massive 20-enzyme toolkit that handles everything from gluten and lactose to complex proteins. It is a sophisticated, dual-action approach for anyone tired of the usual bloating and post-meal heaviness.

What We Like
Low-FODMAP prebiotic
20-enzyme blend
Delayed-release technology
Shelf stable
50 billion CFU

Klaire Labs Interfase Plus (120 Capsules) + Serralase (180 Tablets) - Multi-Enzymes, Serratia Peptidase & Bromelain 'Digestive Enzymes - Gastrointesti...

Klaire Labs Interfase Plus and Serralase Enzyme Duo

KLAIRE LABS

PM Score for KLAIRE LABS (PM Score)

0.0 PM Score
Buy on Amazon
  • Two products to support digestion and GI health.
  • Interfase Plus is a highly specialized enzyme formula that supports normal gastrointestinal function and flora.*
  • Not intended for long-term daily use. As part of a comprehensive program, InterFase Plus is intended for use under the direction of an appropriately trained healthcare professional.
  • Serralase proteolytic vegetarian enzymes offer broad systemic support.*
  • Features highly purified, stable Serratia peptidase. Bromelain (from pineapple) papain (from papaya), and Catalase (bacterial source) help broaden proteolytic actions.*
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FortressBrand Wellness 9.93 Yes Yes No

This specialized digestive duo combines highly targeted gastrointestinal support with broad systemic enzyme action to tackle gut health from two distinct angles. The Interfase Plus capsules serve as a precision tool for maintaining normal flora and GI function, though it is important to note this isn't a permanent daily supplement. It is designed for use under professional guidance during specific wellness programs. Pairing it with Serralase adds a powerful layer of proteolytic support, utilizing purified Serratia peptidase alongside bromelain and papain to assist with biofilm and detoxification. It is a sophisticated kit for anyone looking to manage complex digestive needs through a structured, professional-led approach rather than a casual one-size-fits-all supplement routine.

What We Like
Specialized GI support
Proteolytic vegetarian enzymes
Broad systemic support
Purified Serratia peptidase
Supports gut flora
Buying Guide

A Guide to Selecting the Best klaire labs enzyme nutritional supplements

A Guide to Selecting the Best klaire labs enzyme nutritional supplements

Understanding Enzyme Specificity: Protease, Lipase, and Amylase

The most critical factor in selecting a Klaire Labs enzyme supplement is understanding the specific 'workload' your digestive system requires. Enzymes are not one-size-fits-all. They are highly specialized proteins designed to break down specific macronutrients. If your primary struggle is bloating after heavy meals, you may need a broader spectrum. However, if you struggle specifically with fats, you must prioritize Lipase. If your discomfort follows carbohydrate intake, Amylase is your priority. Protease is essential for protein breakdown, which is often a culprit in delayed gastric emptying. When browsing the range, look for the specific enzyme concentrations rather than just the total milligram count of the capsule.

Broad-Spectrum vs. Targeted Formulations

Klaire Labs offers a variety of formulations that cater to different levels of digestive compromise. Broad-spectrum enzymes are ideal for general wellness and those who want a 'safety net' during diverse meals. These typically contain a cocktail of enzymes designed to tackle proteins, fats, and carbohydrates simultaneously. On the other hand, targeted formulations are often more potent for individuals with diagnosed deficiencies or specific intolerances. For example, if you are managing a gluten-sensitive diet, you might look for specialized blends that assist in breaking down complex plant proteins. Deciding between these depends on whether you are looking for daily maintenance or acute digestive support.

Bioavailability and Enzyme Activity Units

When comparing different enzyme products, do not be misled by the total weight of the pill. A 500mg capsule filled with inactive fillers is less effective than a 100mg capsule with high enzymatic activity. Look for measurements expressed in specialized units such as DU (Digestive Units), HUT (Heat Units), or ALU (Acid Lactase Units). These metrics indicate the actual functional strength of the enzymes. Higher unit counts generally suggest a more potent product capable of breaking down complex food structures more efficiently. High-quality enzyme supplements should also be formulated to survive the harsh acidic environment of the stomach to reach the small intestine where they are most needed.

Lifestyle Integration and Timing

Your selection should also consider how the supplement fits into your daily routine. Some enzyme formulas are designed to be taken with the first bite of a meal to initiate the digestive process, while others are better suited for those who experience discomfort several hours after eating. Consider the 'delivery method' as well. While capsules are standard, some individuals find that powder or chewable formats allow for more flexible dosing during travel or on the go. Always match the enzyme's intended use—such as 'digestive support' versus 'metabolic support'—to your specific meal patterns and symptom timing.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Klaire Labs Enzyme Nutritional Supplements before you buy.

These supplements are designed to assist the body in breaking down macronutrients like proteins, fats, and carbohydrates, helping to reduce bloating and improve nutrient absorption.

Most Klaire Labs enzyme formulations are vegetarian-friendly, but you should always check the specific ingredient label for any animal-derived stabilizers or capsules.

Many users report a reduction in digestive discomfort after the first few doses, though consistent daily use is recommended to support long-term digestive health.

For maximum effectiveness, digestive enzymes should be taken with your first bite of a meal to ensure they are present when food enters the stomach.

Klaire Labs is known for clean formulations, but certain specific blends may contain trace amounts of allergens. Always verify the specific product's allergen statement.

Yes, several Klaire Labs formulas include lactase, a specific enzyme designed to help the body process dairy sugars more efficiently.

While generally safe, you should consult a healthcare professional before starting any new supplement to ensure there are no potential interactions with your current medications.

The majority of Klaire Labs enzyme products are certified gluten-free, making them a reliable choice for those with gluten sensitivities.
Rankings & Insights

Our Klaire Labs Enzyme Nutritional Supplements Rankings

18 Products Compared
7.7 Avg PM Score
3 Brands Ranked

Top 10 Klaire Labs Enzyme Nutritional Supplements Brands on Amazon

Share of top-ranked products by brand, from our rankings.

  1. 01 Klaire Labs 14 (77.8%)
  2. 02 Enzymedica 3 (16.7%)
  3. 03 Hum 1 (5.6%)

How We Selected These Products

We compared Klaire Labs Enzyme Nutritional Supplements products using product details and customer ratings to identify the best options in the vitamins & dietary supplements..

From that comparison we shortlisted the top 18 Klaire Labs Enzyme Nutritional Supplements for this page..

We aim to help you find the right supplements products for your needs and save you time when choosing which Klaire Labs Enzyme Nutritional Supplements to buy.

Side by Side

Comparison Table

Compare the top 18 picks at a glance — select a column to sort.

# Product Brand PM Score Where to Buy
1 Enzymedica DairyAssist Lactose and Casein Digestive Support Enzymedica 9.7 Buy on Amazon
2 Klaire Labs Saccharomyces Boulardii Probiotic Supplement Klaire Labs 9.6 Buy on Amazon
3 Klaire Labs Adrenal Cortex Support Capsules Klaire Labs 9.6 Buy on Amazon
4 Klaire Labs Vital-Zymes Forte Digestive Enzyme Blend Klaire Labs 9.6 Buy on Amazon
5 Klaire Labs InterFase Plus Enzyme Blend Klaire Labs 9.5 Buy on Amazon
6 Klaire Labs Vital-Zymes Complete Digestive Enzyme Complex Klaire Labs 9.5 Buy on Amazon
7 Enzymedica pH-Basic Digestive Enzyme Capsules Enzymedica 9.5 Buy on Amazon
8 HUM Flatter Me Digestive Enzyme Supplement HUM 9.5 Buy on Amazon
9 Enzymedica Kiwi Regularity Digestive Aid Chews Enzymedica 9.4 Buy on Amazon
10 Klaire Labs Interfase Digestive Enzyme Blend Klaire Labs 9.3 Buy on Amazon
11 Klaire Labs SerenAid Vegetarian Multi Digestive Enzymes Klaire Labs 7.3 Buy on Amazon
12 Klaire Labs Nattokinase NSK-SD for Cardiovascular Support Klaire Labs 6.6 Buy on Amazon
13 Klaire Labs Serralase Proteolytic Enzyme Blend Klaire Labs 6.6 Buy on Amazon
14 Klaire Labs Sibb-Zymes Brush Border Digestive Enzymes Klaire Labs 6.4 Buy on Amazon
15 Klaire Labs Theragest Pancreatic Enzymes for Digestion Klaire Labs 5.8 Buy on Amazon
16 Klaire Labs Pure Saccharomyces Boulardii Probiotic Powder Klaire Labs 5.1 Buy on Amazon
17 Klaire Labs Synbiotic Probiotic and Vital-Zymes Enzyme Bundle Klaire Labs 5.1 Buy on Amazon
18 Klaire Labs Interfase Plus and Serralase Enzyme Duo Klaire Labs 0.0 Buy on Amazon