Azelaic acid is a multifunctional skincare ingredient with anti-inflammatory, antimicrobial, and pigmentation-related effects.
It is commonly used for acne and can also help improve post-inflammatory hyperpigmentation. Azelaic acid affects processes involved in excess melanin production, making it useful for certain pigmentation concerns.
It may also help reduce redness and inflammation in some skin conditions.
Different concentrations and formulations are available, and stronger preparations may be regulated differently depending on the country.