Best Klaire Labs in 2026

High Strength & Hypoallergenic - Premium support blend of 12 safe, complementary and well-studied species to support optimal gut flora, immune & GI health. Hypoallergenic 25 billion CFU in a base of chicory-derived prebiotic inulin.*

Probiotic Survival Without Extra Additives - Ther-Biotic does not need additive-packed spheres or tablets to promote probiotic survival. Advanced InTactic technology helps live probiotics reach the small intestine and colon. Each bottle is formulated with sufficient overages, handled with care, and tested for potency that delivers on its promise.*

Protection From Stomach Acid - On exposure to stomach acid, an InTactic 'shield' forms a gel-like matrix surrounding the probiotics, protecting them from damage. On passage into the duodenum, InTactic is designed to break down and release live microorganisms for optimal efficacy.*

Magnesium combined with amino acid glycine creates a unique chelated compound that is highly bioavailable and well tolerated by even the most sensitive individuals.

Contains 100mg of magnesium (bisglycinate chelate and magnesium oxide) per capsule.

Magnesium helps convert carbohydrates, protein, and fats to energy, acts as a catalyst in thousands of enzymatic processes, regulates and maintains vascular tone, opposes calcium deposition into soft tissue, and is critical to proper bone formation.*

Premier four-in-one magnesium formula providing several important forms of magnesium.

Magnesium succinate, magnesium taurinate, magnesium malate, and magnesium aspartate are bioavailable forms designed to provide optimal absorption and utilization.*

Magnesium is necessary for energy (ATP) production, sustaining heart health and healthy blood vessels, and for optimal skeletal muscle function.*

High-potency, fast-dissolving tablets featuring bioactive forms of both vitamin B12 (1000mcg methylcobalamin) and folate to support cardiovascular and nervous system health.*

Convenient lozenge form supports optimal absorption and utilization by the body.*

Folate complements actions of B12 for homocysteine methylation and nervous system function. These tiny tablets use premium active folate (methylfolate).*

A multispecies probiotic to meet the special needs of infants.* Ther-Biotic Baby (formerly Ther-Biotic Infant) packaging may vary as Klaire Labs transitions to SFI Health labeling in 2022.

5 billion CFU blend of five Lactobacillus and five Bifidobacterium species.

Powder can be mixed with expressed breast milk, or solid food at room temperature.*

High Potency, Active Complex - This activated B complex is formulated to enhance your lifestyle with amounts and forms of B vitamins that are directly usable by the human body.*

Superior Folate & B12 - Includes Metafolin (L-5-MTHF), a bioactive form of folate that ensures more immediate effects on metabolism than common folic acid. B12 as methylcobalamin promotes B12 absorption and bioavailability.*

B Vitamins At Their Best - Includes benfotiamine, a fat-soluble derivative of thiamin with increased absorption compared to common water-soluble forms. Also includes active forms of vitamin B2 and vitamin B6 as P-5-P, nutrients that support energy production (metabolism).*

A highly bioavailable lithium supplement.

Lithium orotate is a trace mineral that may offer mood support. It may also help promote mental focus and memory.*

Lithium orotate is thought by some to have superior absorption compared to other lithium salts. Reference: Nieper HA. The clinical applications of lithium orotate. A two years study. Agressologie. 1973;14(6):407-11.

A versatile prebiotic formula to optimize gut microbiota and support bowel and immune system function.*

Featuring chicory-derived inulin, larch arabinogalactan and purified yeast beta-glucan.*

Works synergistically with probiotics to promote intestinal microbiota balance.*

A versatile prebiotic formula to optimize gut microbiota and support bowel and immune system function.*

Featuring chicory-derived inulin, larch arabinogalactan and purified yeast beta-glucan.*

Works synergistically with probiotics to promote intestinal microbiota balance.*

A readily soluble form of magnesium.

Supplies 150 mg per vegetarian capsule.

Magnesium helps convert carbohydrates, protein, and fats to energy, acts as a catalyst in thousands of enzymatic processes, facilitates relaxation, regulates and maintains vascular tone, and is critical to proper bone formation.*

25 billion CFU probiotic blend of 7 Lactobacillus and 5 Bifidobacterium supplied in a base of purified plant cellulose.

Specifically formulated without inulin or other fermentable carbohydrates, making it suitable for carbohydrate-sensitive individuals.*

Supports gastrointestinal and immune health*

For optimal assimilation and pH balance, this formulation uses zinc citrate, the natural form of zinc that is found in human milk.

Vitamin B6 and ascorbic acid have also been added to facilitate zinc metabolism.

Zinc is an essential mineral that activates more than 70 enzymes, including those that assist with protein synthesis and tissue repair.*

Hypoallergenic 50 mg formula of DHEA (dehydroepiandrosterone)

Micronized to a very small particle size designed to facilitate superior absorption.

Available in two other potency options of 10 mg and 25 mg.

High-potency 5,000 mcg of biotin supplied in small, easy-to-swallow capsules.

Biotin-dependent enzymes are involved in skin and hair nutrition.*

Hypoallergenic* product free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, corn, and yeast. Contains no artificial colors, flavors, or preservatives.

A comprehensive, well-balanced, and hypoallergenic formulation designed to meet the needs of individuals who may not be consuming, digesting, or absorbing adequate amounts of protein.*

20 essential and non-essential "L-form" amino acids supplied in each vegetarian capsule.

Uses the highest-quality, crystalline amino acids in their "free" form to ensure maximum absorption and tolerance.

This high-potency B-complex vitamin supplement is formulated to be hypoallergenic* and yeast free.

B vitamins are essential nutrients required for optimal health and functioning of numerous systems and biochemical reactions in the body, including energy production, brain, liver and nerve cell function, and muscle tone in the GI tract.*

Active forms of folate (Metafolin® L-5-methyltetrahydrofolate) and vitamin B12 (methylcobalamin) are used for enhanced absorption and bioavailability.*

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.

Features a fat-soluble form of thiamine (B1), which has higher bioavailability compared to water-soluble forms.*

Clinical studies show that benfotiamine supports healthy neurological structures.*

Hypoallergenic* product free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, corn, and yeast. Contains no artificial colors, flavors, or preservatives.

Broad-acting, 10-species probiotic formula offers comprehensive benefits for the healthy function of the entire gastrointestinal tract.*

The Lactobacillus species normally predominate in the small intestine while the Bifidobacterium species are important for the colon.*

This maintenance-dose vegetarian capsule supplies 5 billion CFU in a base of chicory-derived inulin.

A unique formula that combines bioactive forms of four essential B vitamins with trimethylglycine (betaine).*

Vitamins B2, B6, B12, and folate are provided in active, coenzyme forms for maximal bioavailability and function.*

These ingredients work together to synergistically support methylation processes and help maintain normal homocysteine metabolism.*

Supplies methylcobalamin, the active, coenzyme form of vitamin B12.

Prepared as a convenient liquid to support rapid and efficient absorption of this important B vitamin.*

1 mg (1000 mcg) of vitamin B12 per dropper full.

MULTI ENZYME CHEWABLE - Many enzyme supplements offer limited enzymes such as protease, amylase, and lipase, but lack more specific enzymes needed for optimal digestion. Vital-Zymes is a multi-enzyme complex 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.*

FOR KIDS & ADULTS - A delicious choice for children or adults who have difficulty swallowing pills or may prefer a chewable tablet. Naturally cherry flavored and sweetened with xylitol.

This product supplies microbial-based enzymes to help digest a full range of foods, including protein, fats, carbs, sugar, and fiber.*

Each enzyme in Digestive Enzymes has a role to play that ultimately can help the body better absorb nutrients from food and supplements. This product may also help alleviate bloating, fullness, or discomfort associated with occasional gas.*

These microbial derived digestive enzymes (amylase, lactase, lipase, cellulase, and neutral protease) are formulated to be more pH-stable, working over a broader pH range in the intestinal tract than their animal-derived counterparts.*

A powerful yeast probiotic supplied in a base of 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.

Highly Concentrated - Each drop supplies 1,507 mcg RAE of vitamin A (1500 mcg RAE as vitamin A palmitate and 7 mcg RAE as beta-carotene), with 600 servings per bottle. That means less is more.*

Make Sure It's Micellized - Why choose micellized? Micellization is a natural process that supports the absorption of fat soluble vitamins. Klaire 'pre-packages' its vitamin A into micelles to support optimal utilization by the body.*

Vision & Immune Support - Tiny drops with big impact. Vitamin A is an important nutrient for vision, immune system function, bone and cartilage development, and the maintenance and repair of epithelial tissue.*

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.

Pure, buffered mineral compounds supplying sodium bicarbonate and potassium bicarbonate in vegetarian capsules.

Sodium bicarbonate and potassium bicarbonate are key components of body tissue that help regulate the body's acid/base balance.*

Free of the following common allergens: milk/casein, eggs, fish, shellfish, peanuts, wheat, gluten, soybeans, and corn. Contains no artificial colors, flavors, or preservatives.

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.

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.

Bioavailable bisglycinate chelate from Albion® Laboratories.

This hypoallergenic* product supplies 30 mg elemental iron per capsule.

Specifically formulated to exclude minerals for situations where enhancement of vitamin intake only is desired.

Provides between 100% and 200% of the Recommended Daily Allowance (RDA) for most vitamins, and 300% of the RDA for several B vitamins.

Includes superior nutrient forms such as folate as L-5-methyltetrahydrofolate (5-MTHF), B12 as methylcobalamin, and Vitamin A as natural carotenes.