Hello, I'm a newbie who wants to produce a serum or cream to treat acne. By doing experiments with samples such as friends, relatives and myself, please suggest suitable formulas at affordable prices. (that is, read I don't know which raw material to choose.) Restrictions 1. Characteristics of the skin of the people. will have a combination skin Slightly oily, sensitive skin, 2 types of acne found acne rash
สิวอุดตัน closed type, minor inflamed acne, 3 characteristics of the history of using the product. Most have been through substances such as white cream. Not sure if you have steroids? but as observed Will lose repeatedly, easily lose, if there is advice of other people who come through to read. Please advise. Want to penetrate the customer group with acne. To prepare the base skin better for nourishment and anti-aging in the next step. Thank you.