Almost every guide presents azelaic acid as an all-rounder for acne and rosacea, but its most valuable quality lies elsewhere: it targets dark spots without disrupting healthy skin. It slows down melanin production exactly where it has become overactive, leaving the rest of the complexion untouched. Here’s what it’s for, which types of blemishes it treats best, and how to use it according to your skin type
Sesderma is a Spanish dermatological laboratory founded in 1989 by Dr. Gabriel Serrano, a world-renowned dermatologist.
