Life ExtensionSKU: 737870167112

Life Extension D,L-Phenylalanine 500mg 100 Capsules

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Life Extension D,L-Phenylalanine 500mg 100 Caps | Increases Serotonin Production

D,L-Phenylalanine is a combination of the amino acid L-phenylalanine, and the synthetic form D-phenylalanine. L-phenylalanine is naturally occurring in foods like meat, fish, and dairy. Life Extension D,L-Phenylalanine is used to treat a variety of health conditions including depression, ADHD, osteoarthritis, Parkinson's disease, and most notably for treating chronic pain. Phenylalanine is believed to stimulate production of serotonin, depressing the nervous system and alleviating pain.

Life Extension D,L-Phenylalanine 500mg 100 Caps Benefits

  • Treats Depression
  • Alleviates Pain
  • Increases Serotonin Production
  • Treats Parkinson's Disease


Take one capsule daily on an empty stomach in the morning, or as recommended by a healthcare practitioner. Best utilized if taken with the co-factors vitamins B6 and C.