"Salicylic Acid" is an ingredient primarily used in cosmetics as an exfoliant and preservative. Known as a BHA, it is used for exfoliation, and the permissible limit for its use as a preservative is listed in Appendix 2. According to the Ministry of Food and Drug Safety’s classification, it is a restricted ingredient with a specified usage limit. Usage Limits and Standards: Limit of 0.5% as a preservative, etc. 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 regarding actual treatments or product selection.
[Source] Ministry of Food and Drug Safety (MFDS) Standards for Cosmetic Ingredients and Use (MFDS Restricted Ingredients, Appendix 2)