"Propylparaben" is an ingredient primarily used as a preservative in cosmetics. As a paraben-based preservative, its maximum single-ingredient concentration is specified in Appendix 2. According to the Ministry of Food and Drug Safety’s classification, it is a restricted ingredient with a specified maximum concentration. Maximum concentration limit: 0.14%. Since reactions to ingredients may vary depending on their purpose in the formulation, 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] Ministry of Food and Drug Safety (MFDS) Standards for Cosmetic Ingredients and Use (MFDS Restricted Ingredients, Appendix 2)