Sodium PCA (Sodium PCA)

Sodium PCA is a highly effective humectant and skin-conditioning ingredient valued for delivering long-lasting hydration and improved skin comfort. As the sodium salt of pyrrolidone carboxylic acid and a key component associated with the skin’s natural moisturizing factors, it helps attract and bind water in the stratum corneum, supporting a smoother, plumper, more supple appearance. It is commonly used to enhance moisture retention without heaviness, making it suitable for a wide range of skin types, including dryness-prone and sensitive-looking skin. Sodium PCA is frequently incorporated into serums, creams, lotions, toners, masks, and after-sun products, as well as shampoos, conditioners, and scalp treatments where it can improve softness and manageability. Use level is formulation-dependent and typically optimized with complementary humectants and barrier-support ingredients to achieve the desired sensorial profile and stability.