Ezanic Azelaic Acid Gel 20% treats acne (pimples) and rosacea (redness and visible blood vessels on the face). It contains 'Azelaic acid', a dicarboxylic acid with antibacterial, keratolytic (removes warts, calluses and other lesions), comedolytic (inhibiting the formation of blemishes), and anti-oxidant activity. It is bactericidal and inhibits the synthesis of microbial cellular proteins. It clears the pores of bacteria that cause irritation and breakouts. It also reduces inflammation making acne less visible, less red, and less irritated. It also helps the skin renew itself and reduces pimple and blackhead formation.