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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 2Sol Cica Youth Toner Mediheal N.M.F Aquaring Ampoule Mask Ex The Ordinary Marine Hyaluronics Ausceuticals Peptide Moisturiser Brickell Men's Products Daily Strengthening Shampoo For Men Kikumasamune Skin Care Essence Leaders Insolution Mediu Amino Pore-Tight Mask Peter Thomas Roth Unisex Neuroliquid Volufill Youth Serum The Ordinary Natural Moisturizing Factors + Ha Umoua Advanced Extraction Isosmotic Tech Amino Acid Lotion Brickell Men's Products Reviving Day Serum For Men Esho Drench The Ordinary Amino Acids + B5 Abnomaly Petrowhat? Bali Abnomaly Petrowhat? Baobab Abnomaly Petrowhat? Milk Abnomaly Petrowhat? Rio Avant Skincare 8-Hour Anti-Oxidising And Retexturising Hyaluronic Facial Serum Scinic Peptide Ampoule 95 Algenist Genius Ultimate Anti-Aging Foaming Cleanser Anastasia Beverly Hills Luminous Foundation Leaders Mediu Amino Mousture Mask The Ordinary Glycolic Acid 7% Toning Solution Hello Nature Cannabis Oil Shampoo Loopha Broadleaf Forest Body Wash Mediheal N.M.F Aquaring Ampoule Mask The Ordinary Buffet Equal Beauty Super Serum Hydrantioxidant™ Mesauda Aquacious Booster Serum The Ordinary Buffet + Copper Peptides 1% Drunk Elephant Protini™ Polypeptide Cream Granado Espuma Regeneradora De Limpeza NIOD Survival 0 Zelens Z Balance Prebiotic & Probiotic Facial Mist BONAJOUR Egf Time Recovery Micro Essence Stemm High-Amino Shampoo Kat Burki Form Control Marine Collagen Gel Faith in Nature Rose & Neroli Nourish & Repair Conditioner Nakeup Face Ac Herb Mask Foam Paula's Choice Peptide Booster FOREO Manuka Honey Revitalizing Ufo Activated Mask NIOD Multi-Molecular Hyaluronic Complex 2 (Mmhc2) Nu Skin Nutricentials Moisture Restore Intense Moisturiser Planet Eden Antioxidant Recovery Cream Babe Lash Essential Serum Dr. Macrene 37 Actives Extra Rich High Performance Anti-Aging Cream Institut Esthederm Eve Serum Martial Vivot Conditioner Stemm Black Fulvic Conditioner