L-tryptophan
L-tryptophan is an essential amino acid, which means that it cannot be produced by the body itself and must be supplied. It is a precursor of the neurotransmitter serotonin and the hormone melatonin.
L-tryptophan is an essential amino acid, which means that it cannot be produced by the body itself and must be supplied. It is a precursor of the neurotransmitter serotonin and the hormone melatonin.