Peach 70 Niacin Serum

Anua's Niacinamide 10% + TXA 4% Dark Spot Removing Serum is a potent, hydrating brightening serum that several say fades dark spots and acne marks noticeably within a week, though it won't work on melasma. Shelley Nayak (41K subs) loves the viscous texture and stable formulation, but warns it can feel sticky on oily skin in humid weather and suggests sensitive or dry skin start on alternate nights. MakeupByCheryl (190K subs) found it didn't work for her, so results may vary.