Clinikally The Ultimate NIA Serum is a dermatologist-formulated 10% niacinamide serum for acne-prone, oily and sensitive skin. This multitasking face serum combines high-strength niacinamide with tranexamic acid and Epidermosil to fade acne marks, dark spots and hyperpigmentation while calming redness and inflammation. It helps regulate excess oil, refine enlarged pores and strengthen the skin barrier for smoother, clearer, glass-skin radiance. Lightweight, non-comedogenic and fragrance-free, it layers easily under moisturizer and sunscreen for daily brightening, anti-ageing benefits and long-lasting results overall.