Amino acids

L-Tyrosine is an amino acid which can be converted in the brain and adrenal glands into dopamine, norepinephrine and epinephrine (adrenaline), hormones that are depleted as a result of stress, overwork and certain types of medication. It is therefore an e

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,

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L-Theanine is the predominant amino acid in tea (natural tea extract), which produces calming effects in the brain by increasing serotonin and dopamine levels and blocking the binding of L-glutamic acid to glutamate receptors. This can work as a natural s

Life Extension L-Arginine Caps, 700 Mg 200 Vegetarian Capsules, 3-pack

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

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Life Extension Acetyl-l-carnitine Arginate

L-Arginine is a semi-essential amino acid involved in numerous areas of human biochemistry including ammonia detoxification, hormone secretion and immune modulation. Although amino acids can be manufactured by the human body, the biosynthetic pathway does

Life Extension L-carnitine, 500 Mg 30 Vegetarian Capsules, 5-pack

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Barlean's Environmental Detox, Melon Flavor