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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 Elemis Pro-Collagen Advanced Eye Treatment Lierac Radiance Toning Lotion Medik8 Hydr8 B5 Intense 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) Planet Eden Antioxidant Recovery Cream Esho Drench Kahina Giving Beauty Facial Cleanser Martial Vivot Conditioner Shiseido Eudermine Revitalizing Essence Cezanne All In One Gel NIOD Modulating Glucosides The Ordinary Glycolic Acid 7% Toning Solution The Ordinary Natural Moisturizing Factors + Ha NIOD Survival 0 Paula's Choice Earth Sourced Toner Kahina Giving Beauty Facial Lotion LANEIGE Power Essential Skin Refiner Moisture Dr. Macrene 37 Actives Extra Rich High Performance Anti-Aging Cream Martial Vivot Shampoo Nip+Fab Kale Dry Skin Fix Moisturiser Paula's Choice Peptide Booster Acure Radically Rejuvenating Whipped Night Cream Adsorb Antibody Moist Essence Serum Bioclarity Zen NIOD Multi-Molecular Hyaluronic Complex 2 (Mmhc2) DCL Hydra Boost Finishing Serum Paula's Choice Defense Hydrating Gel-To-Cream Cleanser Su-Man Velvet Skin Moisturising Cream