Anua's Azelaic Acid 10 Hyaluron serum soothes and calms redness. This lightweight, watery serum features 10% azelaic acid and three types of hyaluronic acid. It noticeably minimizes redness caused by dryness while delivering a boost of hydration. A blend of panthenol, aloe, and centella locks in moisture. Niacinamide works over time to refine the appearance of uneven skin tone.