An essential amino acid that the body cannot produce itself but has to take from the diet. Combined with UVA exposure, phenylalanine is used in the treatment of vitiligo (a pigmentation disorder where patches of the skin lose the pigment).

Show me some proof

  • Dermatology 1994;188:215–218, L-Phenylalanine and UVA Irradiation in the Treatment of Vitiligo

Products with Phenylalanine

Nacific Glow Intensive Bubble Toner The Ordinary Marine Hyaluronics Ausceuticals Peptide Moisturiser Kikumasamune Skin Care Essence Leaders Insolution Mediu Amino Pore-Tight Mask The Ordinary Natural Moisturizing Factors + Ha Esho Drench The Ordinary Amino Acids + B5 Abnomaly Petrowhat? Bali Abnomaly Petrowhat? Baobab Abnomaly Petrowhat? Milk Abnomaly Petrowhat? Rio Scinic Peptide Ampoule 95 Leaders Mediu Amino Mousture Mask The Ordinary Glycolic Acid 7% Toning Solution Loopha Broadleaf Forest Body Wash Mediheal N.M.F Aquaring Ampoule Mask The Ordinary Buffet Equal Beauty Super Serum Hydrantioxidant™ The Ordinary Buffet + Copper Peptides 1% Drunk Elephant Protini™ Polypeptide Cream NIOD Survival 0 Zelens Z Balance Prebiotic & Probiotic Facial Mist NIOD Survival 0 (Old Version) Stemm High-Amino Shampoo Faith in Nature Rose & Neroli Nourish & Repair Conditioner Nakeup Face Ac Herb Mask Foam Paula's Choice Peptide Booster NIOD Multi-Molecular Hyaluronic Complex 2 (Mmhc2) Planet Eden Antioxidant Recovery Cream Institut Esthederm Eve Serum Martial Vivot Conditioner Paula's Choice Skincare Earth Sourced Purely Natural Refreshing Toner Stemm Black Fulvic Conditioner The Ordinary Mineral Uv Filters Spf 30 With Antioxidants NIOD Survival Spf 30 Ouai Curl Shampoo Stemm Gold Fulvic Conditioner Boo Bamboo Bamboo Fiber Charcoal Sheet Mask Esho Sculpt Manyo Factory Bifidalacto Eye Cream NIOD Modulating Glucosides Paula's Choice Earth Sourced Antioxidant Enriched Natural Moisturizer Bioderma Matricium Martial Vivot Shampoo STARSKIN Red Carpet Ready Hydrating Bio Cellulose Second Skin Face Mask Stemm Density Stimuli Adsorb Antibody Moist Essence Serum labo Aqua In Derm Dr Macrene High Performance Anti-Aging Cream