La Roche-Posay Effaclar Ultra Concentrated Serum is a daily resurfacing treatment for adult blemish-prone skin. Powered by a potent tri-acid complex, Salicylic Acid, Glycolic Acid, and LHA, plus soothing Niacinamide, this lightweight formula gently exfoliates, unclogs pores, and helps fade post-blemish marks. With visible results, it leaves skin smoother, clearer, and more refined without compromising on tolerance.