Amino acids

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Glycine is a conditionally essential amino acid that works as both an inhibitory and excitatory neurotransmitter. Glycine is chemically one of the simplest and at the same time most ubiquitous of all amino acids. It is found in proteins of all life forms,

Taurine is the most abundant intracellular amino acid in the human body and is found particularly in the excitable tissues of the central nervous system, where it is thought to have a regulating effect and can help to reduce stress. It is also used as a h

Life Extension Acetyl-L-Carnitine, 500 Mg, 100 Capsules, 10-packs

Life Extension Acetyl-L-Carnitine, 500 Mg, 100 Capsules, 5-packs

Source Naturals L-Tyrosine, 500 Mg 100 Tablets, 2-pack

Life Extension Glycine, 1000 Mg 100 Vegetarian Capsules, 5-pack

Life Extension Acetyl-L-Carnitine Arginate, 90 Vegetarian Capsules

Tryptophan is an essential amino acid and a precursor of serotonin, a neurotransmitter that is associated with positive mood, relaxation and restful sleep. Adequate supplies of tryptophan are required to ensure optimum serotonin levels.

Life Extension L-Theanine, 100 mg 60 Vegetarian Capsules

Life Extension L-Taurine Powder, 300 Grams, 2-pack

Life Extension Theralac®, 30 Capsules + Truflora, 32 V-caps