Calm Clear & Balanced Skin Starts Here Take control of breakouts redness & uneven tone with the TIRTIR Azelaic Acid 12% Serum—a targeted treatment serum powered by 12% Azelaic Acid Zinc PCA & Panthenol. Clinically proven to hydrate calm irritation & visibly reduce redness this fast-absorbing serum gently clears & refines acne-prone skin without disrupting the moisture barrier. Key Features & Benefits Powerful Yet Gentle Blemish Care 12% Azelaic Acid works to unclog pores smooth texture & fade post-acne marks—without harsh irritation. Oil-Water Balance for Acne-Prone Skin Zinc PCA regulates excess sebum while Panthenol & Heal-zip™ Technology deliver deep hydration keeping skin calm not stripped. Clinically Proven Hydration & Redness Relief 201.79% increase in outer skin hydration 73.40% reduction in redness after use 10.52% increase in inner hydration Ideal for Oily Dehydrated & Sensitive Skin Formulated for recurring breakouts excess shine & fragile moisture barriers this ser...