Best Glutamine Amino Acid Supplements in 2026

1000 milligram of pure l glutamine per 2 capsules

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Most abundant amino acid in the body

ADVANCED L-LYSINE IMMUNE BOOST - Super Lysine+ provides L-Lysine, Vitamin C, deodorized garlic, and Echinacea for immune support and lip health, plus propolis and licorice root for powerful antioxidant support.

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THE MANY BENEFITS OF LYSINE - A building block of protein, Lysine benefits include immune system support, promoting collagen growth, & supporting lip health. For optimal results, use with Quantum Health Super Lysine+ Cold Sore Ointment.

✅ FREE FORM L-GLUTAMINE: NOW Brand's new value size of this premium amino acid supplement.

✅ EASY TO TAKE ON THE GO: No need to mix any powder. Easy to take these capsules when at the gym or at work.

✅ BENEFITS FOR MEN AND WOMEN: Glutamin supports immune function* & nitrogen transporter*. Benefits gut health*.

Amino acid/supports immune function: Glutamine is considered to be a conditionally essential amino acid, which means that under certain circumstances, the body may require more glutamine than it can produce. In that case, supplementing with glutamine may help with recovery of the amino acid in the body.

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Nitrogen transporter: In the body, glutamine functions as a major nitrogen transporter and is critical for the maintenance of healthy nitrogen balance.Store in a cool, dry place after opening

Fuel Your Mind and Your Muscles: Upgrade your daily amino energy consumption and nourish both your brain and your physique with Genius BCAA by The Genius Brand.* Our BCAA supplement for men and women is vegan and boosted with 100 mg of natural caffeine. Made in the USA without artificial colors, dyes, flavors, or sweeteners. Power Orange flavor. 21 servings per container.

Enhance Performance & Recovery*: Our formula includes 5 g of fermented InstAminos with a 2:1:1 ratio, best for protecting, supporting, and ultimately building lean muscle.* Combined with L-Glutamine, these BCAAs help repair muscles faster, supercharge glycogen replenishment, halt muscle breakdown, and crush soreness.*

Increase Mental Energy & Clarity*: Cognizin helps increase brain energy and attentional performance while supporting memory and long-term brain health.* Rhodiola Rosea helps keep you calm and reduces mental fatigue while promoting longevity.*

ONLY PURE GLUTAMINE FOR DEVELOPMENT AND RECOVERY: Naked's L-Glutamine Powder is a vegan certified and non-GMO pharmaceutical-grade amino acid supplement, manufactured in the USA and free of fillers, flavors, colors and sweeteners. This amino acid helps stimulate muscle growth and significantly improves recovery time.

FORMULATED FOR OPTIMAL ABSORPTION: Each scoop contains undiluted free-form l-glutamine in a finely micronized powder designed to maximize absorption of this key amino acid.

GREAT FOR POST-WORKOUT: Glutamine is a protein building block that protects your body from the negative effects of overtraining. You will notice marked improvements in performance, strength, endurance, recovery, immune function and gut health.

HEALTHY MOOD, RELAXATION, CALMING - L-Theanine is an analog of the amino acids L-Glutamine and L-Glutamic Acid and is derived primarily from tea leaves. L-Theanine has been shown to effectively bring on relaxation without inducing drowsiness, and relieve mental and physical tension.*

BEST VALUE - Powerful formula containing 250 mg and 90 vegetable capsules of pure L-Theanine.

ABSOLUTE PURITY - ZERO SYNTHETIC ADDITIVES, FILLERS, HEAVY METALS, ADULTERANTS - You will never see unnecessary additives such as stearates, dioxides, glycerides or fillers other brands use to make manufacturing cheaper, faster and easier. In addition, we put all ingredients and products through rigorous testing to make sure they are 100% free of contaminants.

GLUTAMINE POWDER – MuscleTech Platinum 100% Glutamine powder supplies 5g of l-glutamine per serving, which works to rapidly replenish the glutamine used during training

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AMINO ACID SUPPORT – Glutamine is the most abundant, conditionally essential free amino acid in your body – more than 20% of the amino acids in your body are glutamine. When you’re training hard, your muscles can lose up to 50% of their glutamine stores

Gastrointestinal Health: l-Glutamine nutritionally supports the mucosal lining and healthy functioning of the gastrointestinal tract.*

Supports Lean Muscle: l-Glutamine also helps promote and preserve lean muscle mass.*

Amino Acid: l-Glutamine is the most abundant amino acid in the body. In times of metabolic stress, glutamine is utilized by the body for tissue repair and gastrointestinal tract support.*

L-Glutamine Benefits - L-glutamine; the most abundant amino acid in the body; is involved in many metabolic processes; including synthesis and protection of muscle tissue, production of glycogen; and immune support

Digestive Health - The amino acid L-glutamine is used in the intestinal tract, kidneys, gallbladder, pancreas & liver; It is also a major source of fuel for intestinal cells and supports the integrity of the intestinal lining

100% L-Glutamine - Manufactured via microbiological fermentation and is USP/FCC grade; The formula is 100% L-glutamine and contains no other substance

🟠 Boosts Immune Health - L-GLutamine is an important amino acid that helps fortify the immune system.* Adding our L-Glutamine powder, especially accompanied with BCAA supplements, in BCAA powder or BCAA capsules form, to your diet can help keep you healthy and functioning properly for optimal health.*

✔️ Supports Gut Health - Look no further! Glutamine or L Glutamine, in L-Glutamine powder form, is a key amino acid that helps support optimal digestion and nutrient absorption.* Our L-Glutamine powder plays an important role in maintaining a healthy gut flora, which is essential for overall health.*

✔️ Gluten Free & No Filler - Our L-Glutamine powder is gluten free, soy free, dairy free and no added sugar.* Supplementing with our L-Glutamine is perfect for active and people leading a healthy lifestyle!* Add our powder to your daily routine and regimen!

MODERN BCAA POWDER FOR MEN & WOMEN – Modern BCAA has been helping athlete’s recover, rehydrate and perform since 2010

SUGAR-FREE BRANCHED CHAIN AMINO ACIDS – zero sugar, zero carbs and zero calories in every delicious serving

IMPROVE MUSCLE RECOVERY, HYDRATION & PERFORMANCE – consume BCAAs before, during and after you work out to promote recovery and hydration

BCAA Sport is NSF-certified and contains a 2: 1: 1 ratio of BCAAs and Amino Acids to replenish energy, protein, and electrolytes to boost hydration and recovery.

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4000mg BCAA 2: 1: 1 Blend, 2250mg Amino Acid Blend, 2000mg Glutamine, 30 servings per container.

NOW Sports products are comprehensively tested so you can trust that our products are pure and effective for every level of athletics.

NITROGEN TRANSPORTER*: Pure Glutamine Powder helps to maintain a positive nitrogen balance crucial for any active individual*, aids in the production of rapidly growing cells to offset some of the stress from physical exertion*, and helps to regulate the body pH to support homeostasis, which is critical for overall fitness.*

IMMUNE SUPPORT*: Great for pre- and post-workout!

Recover smarter and faster with 6 grams of BCAA’s and EAA’s in an instantized post workout recovery cocktail. Most BCAA Powders only give you a mix of BCAA’s but Animal Juiced Aminos gives you BCAA’s plus EAA’s for maximum recovery.

Improve hydration and endurance with patented ingredients and L-Glutamine, L-Taurine and Citrulline Malate. Juiced Aminos is so much more than a regular branched chain amino acid powder.

Three delicious flavors that are instantized for easy mixability and mouth watering taste. You will be craving Juiced Aminos Pre-Workout, Post-Workout, and everywhere between.

HIGH DOSAGE BCAAS: That’s right, 8,180 mg of BCAAs in a single serving. Perfect for consumption during your workout to drive up anabolic impact, or away from the gym when you can’t get your protein and want to prevent the catabolic breakdown of muscle tissue and increase protein synthesis.

ALL BCAAS ARE NOT CREATED EQUAL: AMINOCORE includes real BCAAs, not glutamine. It has pure, 9:6:5 ratio BCAAs and contains additional highly bioavailable B-vitamins not only enhance the anabolic environment, they help to release additional metabolic energy.

REDUCE MUSCLE BREAKDOWN: Packing on serious lean muscle is a matter of reversing the body’s natural tendency to break down muscle (catabolism); BCAAs signal the body to build muscle and when taken at the right time, can increase the anabolic effect.

Contains all 9 Essential Amino Acids (EAAs) - Each serving consists of a 1 gram powder blend of all 9 essential amino acids

Contains all Branched Chain Amino Acids (BCAAs) - Each serving contains L-Leucine, L-Isoleucine, and L-Valine

Required for Countless Bodily Functions - The nine essential amino acids are required for many bodily processes such as building proteins and synthesizing neurotransmitters

FUEL YOUR ACTIVE LIFESTYLE – Glutamine is an amino acid your body uses for protein production. While it’s a must-have among serious athletes, glutamine is a great option for anyone who leads an active lifestyle.

GUT HEALTHY, IMMUNE STRONG – Glutamine can be found in the blood, as well as stored in the skeletal muscles and liver, and in higher concentrations than any other amino acid. It’s an important energy source for cells lining the gut and immune cells, making it critical for a healthy digestive tract and immune response.

ANTIOXIDANT SUPPORT - Regular body movement is terrific for whole-body health. But engaging in heavy exercise can affect glutamine levels, causing stress to the body. Our L-Glutamine formula helps support antioxidant defenses to maintain muscle health.

L-Glutamine: An amino acid that helps with post-exercise muscle cell repair and promotes gastrointestinal and immune system health*

Gut Health: Benefits gastrointestinal health and helps maintain gut permeability and optimal gut barrier function*

Recovery: Helps restore plasma glutamine levels depleted after periods of physical stress, such as prolonged exhaustive exercise*

100% Organic Plant-based Essential Amino Acids: Plant Aminos are 100% organic plant-based essential amino acids. All of the amino acids are delivered naturally in raw whole-food form by combining the most amino acid dense forms of Organic Spirulina & Organic Chlorella. They are shown to have 4x higher absorption than Whey or Soy-based amino acids.

Contains All 9 Essential Amino Acids, BCAA & 18 Total Amino Acids: Plant Aminos contains all 9 essential amino acids plus the 3 Branched-Chain Amino Acids (L-leucine, L-isoleucine & L-Valine) and 9 additional non-essential amino acids (L-Serine, L-Glutamic Acid, L-Proline, L-Glycine, L-Alanine, L-Aspartic Acid, L-Tyrosine, L-Arginine & L-Cystine).

Essential Building Blocks For Recovery & Performance: Essential amino acids and Branched Chain Amino Acids (BCAA) are building blocks the body cannot produce on its own and received through our diets. They are required to repair existing muscle, build new muscle tissue, and synthesize neurotransmitters that facilitate brain function.*

Bcaa 2:1:1 Ratio: Offers a blend of Vegan InstAminos blend—2.5 leucine, 1.25 isoleucine, 1.25 valine

Supports Muscle Recovery: Post-workout powder promotes muscle recovery, endurance, and hydration, while reducing muscle breakdown

Convenient Powder Form: Mixes easily with water and contains zero calories, zero carbohydrates, and zero grams of sugar

AMINO ACID AND NITRIC OXIDE FORMULA DESIGNED TO SUPPORT HEART HEALTH: Cardio fitness, pre-workout, performance, energy

LEADING L-ARGININE POWDER: Research based on a Nobel Prize winning breakthrough discovery of nitric oxide

GREAT TASTE: Quality ingredients and delicious flavor. Easy-to-Mix, Kosher, Sugar-free, Gluten Free

Six Advanced Forms of Creatine – BEST CREATINE Combines Six Advanced Forms of Creatine Into One Powerful Blend That Promotes Better Muscle Growth, Improved Strength and Power, and Faster Recovery So You Can Excel in The Gym, on The Field or The Court.

Lean Muscle Gains – Creatine is a Nutrient That Occurs Naturally in The Body and in Some Foods; It Functions as an Energy Source, Helping Improve Muscular Output and Reduce Fatigue During Rigorous Physical Exertion.

Creatine AKG, One of The Six Forms of Creatine in BEST CREATINE, is Creatine Bonded to Alpha-Ketoglutarate, a Precursor of Glutamine; Glutamine is an Amino Acid Crucial for Muscle Growth and Recovery.

HPLC Lab Tested - Every batch of every product is tested by independent third party labs to ensure potency.

Fermented - NutraBio L-Glutamine is vegetable based, naturally fermented 100% L-Glutamine manufactured right here in the United States!

Without Compromise – NutraBio’s L-Glutamine provides 5000 mg of pure raw unflavored glutamine per serving.

ORGANIC SPORT PROTEIN: Certified USDA Organic, Non GMO Project Verified, NSF Certified for Sport, Informed Choice for Sport Certified, Vegan, Gluten Free, Dairy Free, Soy Free, No added sugars

POST WORKOUT RECOVERY: Our Garden of Life Vegan Protein helps you refuel & repair muscles after a hard workout with 30g of Complete Protein and over 5g BCAA amino acids, Glutamine & Glutamic Acid

RECOVERY DRINK: This sport protein powder promotes faster recovery with an Organic High Antioxidant Blend of Organic Tart Cherries, Organic Apples, Organic Turmeric, Organic Gogi berries and Organic Blueberries

Energy/Lean Muscle: Helps provide energy and promote lean muscle mass*

Sports: Supports sports- and fitness-related activities*

Strength: Provides support for muscle strength in anyone needing additional support*

SUPERIOR RECOVERY & HYDRATION: ADYM Caffeinated is designed for consumption BEFORE & DURING workouts so you can kick start an anabolic environment and heal muscles with a heavy dose of aminos. Stay hydrated and replenish with vitamins, minerals, antioxidants, and electrolytes from raw coconut water.

MAX ENDURANCE & ENERGY: 125mg of jitter-free natural caffeine from green tea and green coffee extracts joins energy vital B-Vitamins while Beta Alanine + Sodium Bicarbonate buffers lactic acid buildup. Go longer, harder and stronger every time!

ALL 9 ESSENTIAL AMINO ACIDS + Glutamine, L-Carnitine L-Tartrate, and Taurine. You get a sleeve busting 9 G Amino Acid Matrix of BCAAs, EAAs, and CEAAs to crush the delayed onset muscle soreness that compromises your training.

ADVANCED MUSCLE RECOVERY. Insane Amino is formulated to repair your muscles after an intense workout with a full 2:1:1 Branched Chain Amino Acid ratio.

ENERGY AND FOCUS ENHANCING. What sets Insane Amino apart from other bcaa energy supplements? Not only are you getting a full dose of branched chain amino acids, but you are also getting several essential amino acids like tyrosine, citrulline, and glutamine. Don’t forget about that much needed caffeine boost.

MAD CHEMIST GUARANTEE. Insane Labz prides itself on the highest quality ingredients to go along with the top products on the market. When you order Insane Labz supplements, you know you are getting an unparalleled product unmatched by any other company out there.

Fermented L Glutamine Supplement: Jacked Factory's L-Glutamine powder features unflavored, vegan, fermented L-Glutamine that mixes instantly in virtually any liquid! Each serving provides 5000mg of pure glutamine to help athletes, bodybuilders, gym-goers, and fitness enthusiasts alike.

Support Post Workout Recovery, Muscle Soreness, and Digestion Health: L-Glutamine is an amino acid that plays a multitude of roles throughout the body. It's a crucial building block of skeletal muscle tissue and necessary for replenishing muscle glycogen before, during, and after exercise. L-Glutamine supplementation promotes muscle recovery, supports immune function, and maintains gastrointestinal tract integrity.

Quality L Glutamine Powder: Glutamine is rapidly depleted after intense exercise, making it a crucial amino acid supplement for those who train regularly. Our high-quality L Glutamine powder is rapidly absorbed, gentle on the stomach, and easy to mix with other powdered supplements.

L-GLUTAMINE: The body's most abundant amino acid

ADVANCED FORMULA: Provides serious support for athletes with 1,500 mg of glutamine per serving

ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living