CLINICAL Niacinamide 20% Treatment is an innovative serum with an unprecedented concentration of niacinamide. This smart, multifaceted ingredient uniquely penetrates the skin’s surface to help improve the look of sagging, stretched pores while effectively tightening and minimizing. The launch marked Paula’s Choice as one of the ONLY brands and the brand believes the first, on the market offering niacinamide in 20% concentration that doesn’t sensitize or irritate skin. Containing antioxidant-rich purslane and acetyl glucosamine, the formula smooths rough texture, tenacious bumps, helps improve uneven skin tone and visibly fades post-blemish marks. This serum also normalizes pore function leaving behind a dramatically smoother complexion.