Best Vegetarian Amino Acid Supplements in 2026

Bioactive B Vitamins - Methyl B-12 & Methyl Folate provides methylcobalamin (methyl B-12) & methyl folate, which are the biologically active forms of vitamin B12 and B9, plus pyridoxal-5-phosphate (P5P), the coenzyme form of vitamin B6.

Energy Support Benefits - This Jarrow Formulas supplement helps to support cellular energy metabolism production, brain function, DNA & neurotransmitter synthesis, and amino acid metabolism.

Homocysteine Metabolism - The unique combination of these B vitamins support the recycling of homocysteine to methionine to support cardiovascular health.

Bioactive B Vitamins - Methyl B-12 & Methyl Folate provides methylcobalamin (methyl B-12) & methyl folate, which are the biologically active forms of vitamin B12 and B9, plus pyridoxal-5-phosphate (P5P), the coenzyme form of vitamin B6.

Energy Support Benefits - This Jarrow Formulas supplement helps to support cellular energy metabolism production, brain function, DNA & neurotransmitter synthesis, and amino acid metabolism.

Homocysteine Metabolism - The unique combination of these B vitamins support the recycling of homocysteine to methionine to support cardiovascular health.

SUSTAIN Bilayer Release Technology

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

Important Source of Organic Sulfur: Jarrow Formulas MSM is an organic source of bioavailable sulfur; It provides the highest quality of MSM available, supporting amino acids and proteins in cartilage; This formula supports joint health

Sulfur Highlights: Sulfur is an antioxidant mineral found in the body’s structural proteins (i.e., chondroitin sulfate, dermatan sulfate and hyaluronic acid); Sulfur-containing structural proteins are in connective tissues like joint cartilage and skin

For Best Results: For best results, use with Jarrow Formulas JarroSil, the biologically Activated Silicon

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, the formula is 100% L-glutamine and contains no other substance.

Antioxidant Amino Acid - N-Acetyl-L-Cysteine (NAC) is an antioxidant amino acid that contributes cysteine to the antioxidant glutathione; which is a tripeptide of cysteine, glycine and glutamate.

N-A-C Benefits - Jarrow Formulas N-A-C helps support glutathione production in the brain, liver and other organs.

Cellular Health & Liver Function – Jarrow Formulas N-A-C supports the detoxification function of the liver and supports the immune system; as well as glutathione synthesis.

Highlights: NAG is an aminosaccharide, synthesized from glucose and the amino acid L-glutamine that has been stabilized by complexing it to an acetyl group; It’s the body’s precursor to hyaluronic acid, which is part of the synovial fluid in joints

Joint and Intestinal Health: NAG combines with mucin secreted from goblet cells to support the glycocalyx, a protective layer of glycoproteins and polysaccharides that lines the digestive tract; NAG supports joint and intestinal health

For Best Results: For best results, use with Jarrow Formulas JarroSil, the biologically Activated Silicon

L-Arginine Benefits - L-arginine is an amino acid that plays an important role in several pathways, including protein synthesis, production of creatine phosphate (needed to produce ATP) & synthesis of nitric oxide, which is involved in blood flow.*

Normal Tissue Repair - Arginine is a precursor to protein and nitric oxide synthesis, which supports normal tissue repair.*

Convenient Tablets - Each tablet delivers 1,000 mg of l-arginine. Take one tablet once or twice per day or as directed by your qualified healthcare professional.

Antioxidant Amino Acid - Taurine is a sulfur-containing, antioxidant amino acid that supports osmoregulation (maintenance of concentrations of ions) inside the cell, membrane stabilization, bile acid conjugation, and brain function.

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

Brain Health - Jarrow Formulas Taurine supports several brain functions.

Neurologically Active Amino Acid - Theanine exerts beneficial effects on brain metabolism.

Relaxation Without Drowsiness - Theanine supports relaxation without drowsiness, as measured by increased generation of alpha-waves.

Calmness - Theanine may promote calmness by affecting dopamine and serotonin neurotransmitters in the brain.

Highest Concentration of Active S,S Form - The biologically active form of SAMe is the S,S structure. The formula is made naturally by fermentation & processed without chemical solvents to preserve 68-80% S,S SAMe.

Joint Health, Liver Function & Antioxidant Defense - SAMe supports the production of healthy connective tissue. Plus, SAMe metabolism supports the synthesis of glutathione, which is critical for antioxidant defenses and liver functions.

Brain Metabolism & Mood - SAMe methylation reactions are involved in the synthesis of phosphatidylcholine and neurotransmitters such as dopamine, norepinephrine, and serotonin. The formula has been shown to have a positive effect on mood.

Bioactive B12 - Jarrow Formulas Methyl B-12 (methylcobalamin) is the biologically active coenzyme form of vitamin B12. It supports brain and nerve health & function, energy production, cell replication, red blood cell production & sleep-wake cycles.

Homocysteine Metabolism - Methyl B-12 is also required to metabolize homocysteine back into the essential amino acid L-methionine.

Better Retained - Research suggests that methyl B-12 is better retained in the body than cyanocobalamin, and supplementation may be needed by some vegetarians/vegans.

Energy Production - L-carnitine is an amino acid found in high concentrations in heart and liver tissues.

L-Carnitine Highlights - Jarrow Formulas L-Carnitine contains L-carnitine as L-carnitine tartrate. It transports fatty acids into mitochondria for cellular energy production (i.e., ATP).

Convenient Veggie Caps - Adults take 1 capsule 1 to 2 times per day on an empty stomach or as directed by your qualified healthcare professional. The formula is vegetarian and vegan.

Supports Bone Health and Muscle Function: Jarrow Formulas’ Magnesium Optimizer is a synergistic combination of nutrients to support optimizing magnesium status; Magnesium supports nerve and muscular tissue function

Benefits for Exercise and Endurance Activities: Magnesium malate can be used by physically active individuals to support exercise and endurance activities; This formula is suitable for vegans and vegetarians

Taurine and P5P: Taurine, a free-form amino acid antioxidant, supports magnesium status and aids in osmoregulation; Pyridoxal 5-phosphate (P5P) is the active form of vitamin B6 and supports the metabolism of proteins and amino acids

Energy Production - L-carnitine is an amino acid found in high concentrations in heart and liver tissues.

L-Carnitine Highlights - Jarrow Formulas L-Carnitine contains L-carnitine as L-carnitine tartrate. It transports fatty acids into mitochondria for cellular energy production (i.e., ATP).

Convenient Veggie Caps - Adults take 1 capsule 1 to 2 times per day on an empty stomach or as directed by your qualified healthcare professional. The formula is vegetarian and vegan.

Bioactive B12 - Jarrow Formulas Methyl B-12 (methylcobalamin) is the biologically active coenzyme form of vitamin B12. It supports brain and nerve health & function, energy production, cell replication, red blood cell production & sleep-wake cycles.

Homocysteine Metabolism - Methyl B-12 is also required to metabolize homocysteine back into the essential amino acid L-methionine.

Better Retained - Research suggests that methyl B-12 is better retained in the body than cyanocobalamin, and supplementation may be needed by some vegetarians/vegans.

L-Tyrosine Highlights: L-tyrosine, a constituent of dietary protein, is a substrate or precursor to the catecholamine neurotransmitters norepinephrine, epinephrine and dopamine, the levels of which can be affected by the amount of tyrosine consumed

Brain Health: Jarrow Formulas L-Tyrosine is a free form amino acid that supports brain function

Pure: This formula contains pure crystalline l-tyrosine

N-Acetyl Tyrosine - N-Acetyl Tyrosine is an acetylated derivative of the amino acid L-tyrosine that enhances the solubility & stability.

Brain Function - N-Acetyl Tyrosine supports brain function by supporting the synthesis of norepinephrine and dopamine (neurotransmitters).

Convenient Capsules - Adults take 1 capsule 1 or 2 times per day, preferably with juice on an empty stomach, or as directed by your qualified healthcare professional.

N-Acetyl Tyrosine - N-Acetyl Tyrosine is an acetylated derivative of the amino acid L-tyrosine that enhances the solubility & stability.

Brain Function - N-Acetyl Tyrosine supports brain function by supporting the synthesis of norepinephrine and dopamine (neurotransmitters).

Convenient Capsules - Adults take 1 capsule 1 or 2 times per day, preferably with juice on an empty stomach, or as directed by your qualified healthcare professional.

Healthy Sleep Cycle: Sleep Optimizer combines herbs and amino acids that work together to facilitate falling asleep and maintaining a regular sleep cycle; This formula addresses all aspects of sleep, including relaxation, latency, and biological clock

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

Promotes Relaxation: The formula contains gamma-aminobutyric acid (GABA), lemon balm, and L-tryptophan to promote relaxation

Important Source of Organic Sulfur - Jarrow Formulas MSM is an organic source of bioavailable sulfur. It provides the highest quality of MSM available, supporting amino acids & proteins in cartilage. This formula supports joint health.

Sulfur Highlights - Sulfur is an antioxidant mineral found in the body’s structural proteins (i.e., chondroitin sulfate, dermatan sulfate & hyaluronic acid). Sulfur-containing structural proteins are in connective tissues like joint cartilage & skin.

For Best Results - For best results, use with Jarrow Formulas JarroSil, the biologically Activated Silicon.

L-Glutamine Benefits - L-glutamine, the most abundant amino acid in the body, is involved in many metabolic processes, including synthesis + protection of muscle tissue, production of glycogen, and immune support during immune & muscular stress.*

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

100% L-Glutamine - Jarrow Formulas L-glutamine is manufactured via microbiological fermentation. The formula is 100% L-glutamine and contains no other substance.