"Glycerin" is an ingredient primarily used for moisturizing in cosmetics. As a humectant that attracts and retains water, it is widely used to maintain moisture in the stratum corneum. According to the Ministry of Food and Drug Safety’s classification, it is an ingredient for general use. Since reactions to ingredients may vary depending on their intended use, 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)