Discover BESTVITE DL-Phenylalanine 500mg. Each vegetarian capsule supports mood, energy, and focus with 500 mg of DL-Phenylalanine. This 2-pack includes 2 bottles of 120 capsules. Pure formula with no stearates or fillers; vegan, gluten-free, non-GMO. Manufactured in the USA in an NSF/ANSI 455-2 GMP-certified facility and third-party tested for quality.