Doctor s Best D-Phenylalanine Supports Mood Nervous System Non-GMO Vegan Gluten Free 500 mg 60 Veggie Caps
- D-phenylalanine is reported to inhibit an enzyme that degrades enkephalins.
- D-phenylalanine is a non-protein amino acid related to the essential amino acid L-phenylalanine.
- During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when....