Mandelic Acid Dark Spot Correcting Serum

Mandelic acid carries a bulkier molecule than most exfoliating acids, so it works through the surface slowly — which is why this serum suits sensitive or acne-prone skin, and skin new to acids. Two or three applications a week is the usual starting point, stepping up as tolerance grows. Pigmentation, post-breakout marks and patchy tone soften over time; the light texture absorbs quickly, and daytime sunscreen is its necessary companion.