“…It helps acne patients recover from sun damage, fine lines, redness, and wrinkles. Due to its beneficial/therapeutic properties, niacinamide is used in acne medications and other skincare products [ 57 , 58 ]. - Azelaic acid : Azelaic acid is a naturally occurring substance derived from barley and wheat with antibacterial, anti-inflammatory, anti-keratolytic, and anti-oxidative activities [ 59 ].
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