"Zinc Oxide" is an ingredient primarily used in cosmetics to provide sun protection. As an inorganic sunscreen ingredient, it blocks a broad spectrum of UV rays and is frequently used in products for sensitive skin. According to the Ministry of Food and Drug Safety (MFDS) classification, it is a restricted ingredient with a specified usage limit. Usage Limit and Standards: Maximum usage limit is 25%. Since reactions to ingredients may vary depending on the formulation purpose, concentration, and individual skin type, it is recommended to check the full list of ingredients. This information is for reference only and does not constitute a diagnosis. Please consult a medical professional or expert before undergoing any procedures or selecting products.
[Source] MFDS Standards for Cosmetic Ingredients and Use (MFDS Restricted Ingredients, Appendix 2)