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Also-called-like-this: Pyrrolidone Carboxylic Acid

Official CosIng Information


PCA stands for Pyrrolidone Carboxylic Acid and though it might not sound like it, it is a thing that can be found naturally in our skin. In fact, after amino acids, it is the second biggest NMF component of the skin with 12% being PCA of the NMF composition of normal skin.  So similar to other NMFs, it's a skin goodie that helps the skin to hold onto water and stay nicely hydrated. 

Show me some proof

  • Lodén, Marie. "Role of topical emollients and moisturizers in the treatment of dry skin barrier disorders." American journal of clinical dermatology 4.11 (2003): 771-788.

Products with Pca

CeraVe Hydrating Cream To Foam Cleanser Prodermic Daily Tonic Swissvita Skin Regenerating Vital Essence Ausceuticals Peptide Moisturiser Brickell Men's Products Daily Strengthening Shampoo For Men The Ordinary Amino Acids + B5 Truecider Shampoo & Body Wash G.M. Collin Hydramucine Treating Mist Geek & Gorgeous Liquid Hydration La Roche-Posay Effaclar K [+] - Renovating Care For Oily Skin La Roche-Posay Hydraphase Intense Serum OMIA Non Sapone Mani E Viso All'Aloe Vera OMIA Non Sapone Mani E Viso All'Olio Di Mandorla Reverie Shampoo Shiseido Aqualabel Deep Clear Oil Cleansing Virtue Labs Refresh Purifying Leave-In Conditioner Abnomaly Petrowhat? Bali Abnomaly Petrowhat? Baobab Abnomaly Petrowhat? Milk Abnomaly Petrowhat? Rio Eight Saints Night Shift Hydration Gel Lancôme Bienfait Aqua Vital Lotion Day Cream Living proof Intense Moisture Mask Nu Skin Ageloc® Lumispa™ Activating Cleanser - Oily OMIA Aloe Vera Cleansing Gel Reverie Conditioner Comme Deux Serum Booster Pore Refining & Mattifying Darphin Cleansing Foam Gel Dermaction plus by watsons Anti-Ane Cleansing Water Eva Naturals Peptide Complex Serum Gin Amber Beauty Natural Peptide Serum LANEIGE Essential Power Skin Refiner (Sensitive) Lancôme Hydra Zen Anti-Stress Glow Liquid Moisturizer Loopha Broadleaf Forest Body Wash Serum Factory Pimple Punch Supercharged serum dr. denese Skinscience Essential Radiance Enzyme-Rich Cleansing Cream G.M. Collin Intensive Exfoliant Gel G.M. Collin Sensiderm Treating Mist Hello Nature Cannabis Oil Shampoo Principia Ácido Glicólico Zelens Provitamin D Fortifying Facial Mist Earthsafe Unscented Hair Shampoo Fundamental Vitaglow Treatment Essence G.M. Collin Hydramucine Cleansing Milk Gia Naturals Eye Love Grande Cosmetics Água de Limpeza Dermocalmante Happy hair Sos Repair Shampoo Nature Republic Argan Essential Deep Care Shampoo OMIA Intimo Gel Ph 3,5 Zelens Z Balance Prebiotic & Probiotic Facial Mist