1. If you want to mix Azelaic Acid and AHA ? What bass should I use? 2. If you want to order a base to dilute Benzoyl peroxide such as benzac, can it be done?
Hello. 1. Can you do it? But keep the pH in the proper range. I recommend you try to study the basics of cream blending at มือใหม่กรุณาอ่านที่นี่ 2. Can you do it? According to the advice above