dl-Phenylalanine is a combination of the well-tolerated essential amino acids, d-phenylalanine and l-phenylalanine. Together, these compounds promote mental functioning, support a positive outlook, and relax the musculoskeletal system. l-Phenylalanine is a precursor to tyrosine, which converts to the neurotransmitters norepinephrine, epinephrine, dopamine and tyramine. Tyrosine and its metabolites may support emotional well-being, memory and learning. d-Phenylalanine may promote the levels of certain endorphins, thereby calming stressed muscles and joints. By maintaining healthy tyrosine and endorphin levels, dl-phenylalanine nutritionally supports mental acuity and emotional well-being, while relaxing stressed muscles and joints.
What Is The Source? dl-Phenylalanine (free-form) is synthetically produced. Vitamin C (ascorbyl palmitate) is derived from corn dextrose fermentation and palm oil.