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 struct…
Ingredients
Other Ingredient: Hypromellose (Cellulose Capsule).
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. produced in a gmp facility that processes other ingredients containing these allergens.



