Vitamin C

Executive Summary For decades, a pervasive myth has dominated the skincare industry: the assertion that Niacinamide (Vitamin B3) and Vitamin C (L-Ascorbic Acid) are mutually exclusive actives that neutralize each other when combined. This antiquated narrative has forced consumers and even some clinicians into rigid, bifurcated skincare routines. However, modern cosmetic chemistry and dermatological research…