A dermatologist-developed, 8.5% triple-acid serum that helps improve skin tone and texture post-breakouts. Great for: Oily Skin Acne-prone skin Clarify congested pores and visibly improve the look and feel of your skin, all while you're catching some zzz's. This triple-acid serum is your skin's overnight post-breakout go-to. It harnesses the powers of our Triple Acid Complex plus Niacinamide improve skin tone and texture and soothe and nourish skin. Apply 3-5 drops in the evening on clean skin and wake up to a smoother, more even, and clearer complexion. If irritation occurs, use every other day.