Amino acids

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,

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, and this can be ac

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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

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.

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The human body produces creatine itself, from the amino acids L-arginine, glycine and L-methionine, especially in the kidneys and the liver. Creatine helps transport energy through the circulatory system to all body cells. Creatine is, for example, the ba

L-phenylalanine is an essential amino acid which is converted in the liver into L-tyrosine. L-tyrosine in turn is converted in the brain and the adrenal glands into L-DOPA, which is further converted into the neurotransmitters dopamine, norepinephrine (no

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