Phenylalanine (L-Phenylalanine)

Phenylalanine, or L-Phenylalanine, is an essential amino acid that the human body cannot synthesise on its own and therefore must be obtained from the diet. Phenylalanine is one of the amino acids the body uses to build proteins.

In the body, L-Phenylalanine can be converted into tyrosine (L-Tyrosine), which further participates in the formation of several biologically important compounds. In dietary supplements, phenylalanine is most commonly available as a single amino acid in powder or capsule form.

Also check other single amino acids such as leucine, tryptophan and lysine. You can find a wider selection in the dietary supplements category.