L-Phenylalanine is an essential amino acid that is necessary for the synthesis of proteins.* Because phenylalanine can be readily converted into the amino acid tyrosine, which forms part of the structure of the neurotransmitters dopamine and norepinephrine, it is important for the maintenance of a healthy nervous system.* Natural color variation may occur in this product. Settling of powder may occur in the capsule, which is filled by weight without added fillers.
Pack of 120 capsules
An essential amino acid that can be readily converted into the amino acid tyrosine
Must be obtained through the diet or supplementation
Manufacturer has changed product ingredient to vegetarian capsule. Amazon will offer replacement for non-Vcap shipments