Zinc Pyrrolidone Carboxylate/Zinc PCA CAS 15454-75-8 is a complex of zinc and pyrrolidone carboxylic acid known for its ability to regulate sebum production and control oily skin. This makes it an ideal ingredient for products targeting acne-prone or oily skin, as it helps maintain a balanced and healthy complexion. Additionally, its anti-inflammatory properties make it effective in soothing and calming irritated skin, making it a versatile ingredient for sensitive skin formulas.