Product code RXSOL-60-6604-859
L PHENYLALANINE FOR BIOCHEMISTRY
The L-isomer is used to biochemically form proteins, coded for by DNA. Phenylalanine is a precursor for tyrosine, the monoamine neurotransmitters dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline), and the skin pigment melanin. ... Phenylalanine is found naturally in the breast milk of mammals.