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Cosmetic Raw Materials 1. What is Azelaic acid powder? Azelaic acid is a classic medicinal ingredient. Whenever an ingredient is associated with a drug or disease treatment, there is a lot of literature evidence. Like retinoic acid, like niacin (vitamin B3), like vitamin C. But azelaic acid is a niche player in the skincare industry. In fact, it is a safe, effective and good medicine for acne and rosacea with few side effects. It is also very effective for pigmented diseases such as melasma and melanoma. Azelaic acid, also known as azelaic acid, is an all-around ingredient that can sterilize, anti-inflammatory, control oil, and prevent skin keratinization. Among all functions, sterilization is the core effect. Azelaic acid can inhibit the protein synthesis of microorganisms, and can kill Propionibacterium acnes and Staphylococcus epidermidis