Azelaic acid is a natural ingredient that specifically targets both pigmentation disorders and the underlying processes involved in the development of acne. It inhibits the overproduction of melanin, which fades post-inflammatory hyperpigmentation (PIH) and evens out skin tone. At the same time, it works keratolytically and comedolytically: it stimulates the natural shedding of dead skin cells and prevents buildup in the pores, helping to prevent the formation of new lesions. By optimizing cell renewal in the follicles, it contributes to a refined skin texture. Azelaic acid also inhibits the growth of Cutibacterium acnes and soothes inflammatory reactions in acne-prone skin.