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Also-called-like-this: Pyrrolidone Carboxylic Acid


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

Ausceuticals Peptide Moisturiser Brickell Men's Products Daily Strengthening Shampoo For Men The Ordinary Amino Acids + B5 La Roche-Posay Effaclar K [+] - Renovating Care For Oily Skin La Roche-Posay Hydraphase Intense Serum Abnomaly Petrowhat? Bali Abnomaly Petrowhat? Baobab Abnomaly Petrowhat? Milk Abnomaly Petrowhat? Rio Nu Skin Ageloc® Lumispa™ Activating Cleanser - Oily OMIA Aloe Vera Cleansing Gel Darphin Cleansing Foam Gel LANEIGE Essential Power Skin Refiner (Sensitive) Loopha Broadleaf Forest Body Wash Hello Nature Cannabis Oil Shampoo Zelens Z Balance Prebiotic & Probiotic Facial Mist Dermalogica Daily Microfoliant Elemis Absolute Eye Serum Dermalogica Daily Microfoliant Elemis Pro-Collagen Advanced Eye Treatment Lierac Radiance Toning Lotion Medik8 Hydr8 B5 Intense Proactive+ Water Gel Hydrator Equal Beauty Super Serum Hydrantioxidant™ Faith in Nature Rose & Neroli Nourish & Repair Conditioner LANEIGE Watery Sun Cream Spf 50+ Pa++++ The Ordinary Marine Hyaluronics Neutrogena Hydro Boost Aqua Pearls Serum (Germany) Neutrogena Hydro Boost Supercharged Booster Planet Eden Antioxidant Recovery Cream Elemis SOS Emergency Cream Esho Drench Algenist AA Barrier Serum Kahina Giving Beauty Facial Cleanser Martial Vivot Conditioner Shiseido Eudermine Revitalizing Essence Beauty Pie Super Healthy Hair™ Daily Strengthening Shampoo Cezanne All In One Gel NIOD Modulating Glucosides The Ordinary Glycolic Acid 7% Toning Solution The Ordinary Natural Moisturizing Factors + Ha Algenist Genius Ultimate Anti-Aging Foaming Cleanser NIOD Survival 0 Paula's Choice Earth Sourced Toner Kahina Giving Beauty Facial Lotion LANEIGE Essential Power Skin Refiner - Light LANEIGE Power Essential Skin Refiner Moisture Babe Lash Essential Serum Dr. Macrene 37 Actives Extra Rich High Performance Anti-Aging Cream Martial Vivot Shampoo