L-Phenylalanine 500 mg Vegetable Capsules is one of Solgar's premium-quality amino acid range products, containing L- Phenylalanine, an essential amino acid which functions as the precursor to Tyrosine. L-Phenyalanine is the precursor to Tyrosine, which is used the create hormones such as epinephrine, norepinephrine, DOPA and dopamine.
500 mg L-Phenylalanine comes in an easy to take vegetable capsule, once daily.