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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 The Ordinary Amino Acids + B5 La Roche-Posay Effaclar Cleansing Foaming Gel 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 LANEIGE Essential Power Skin Refiner (Sensitive) Loopha Broadleaf Forest Body Wash Zelens Z Balance Prebiotic & Probiotic Facial Mist Dermalogica Daily Microfoliant Lierac Radiance Toning Lotion Equal Beauty Super Serum Hydrantioxidant™ Faith in Nature Rose & Neroli Nourish & Repair Conditioner LANEIGE Watery Sun Cream Spf 50+ Pa++++ The Ordinary Marine Hyaluronics Planet Eden Antioxidant Recovery Cream Esho Drench Kahina Giving Beauty Facial Cleanser Martial Vivot Conditioner Shiseido Eudermine Revitalizing Essence Khiels Creamy Eye Treatment With Avocado NIOD Modulating Glucosides The Ordinary Glycolic Acid 7% Toning Solution The Ordinary Natural Moisturizing Factors + Ha NIOD Survival 0 LANEIGE Power Essential Skin Refiner Moisture Martial Vivot Shampoo Nip+Fab Kale Dry Skin Fix Moisturiser Paula's Choice Peptide Booster Adsorb Antibody Moist Essence Serum NIOD Multi-Molecular Hyaluronic Complex 2 (Mmhc2) The Ordinary Buffet Paula's Choice Defense Hydrating Gel-To-Cream Cleanser Paula's Choice Rehydrating Moisture Mask Stemm Black Fulvic Conditioner Stemm High-Amino Shampoo The Ordinary Buffet + Copper Peptides 1% The Ordinary Mineral Uv Filters Spf 30 With Antioxidants Paula's Choice Skincare Earth Sourced Purely Natural Refreshing Toner Esho Sculpt Kikumasamune Skin Care Essence NIOD Survival Spf 30 Stemm Gold Fulvic Conditioner LANEIGE Water Sleeping Mask Dr Macrene High Performance Anti-Aging Cream Holika Holika Holi Pop Bb Cream Matte