Depending on the severity, acne-induced pigmentation usually fades within a month. To speed up the process, opt for a serum like the Skin Inc Vitamin B3+ Serum to help increase your skin cells’ turnover rate. This serum tackles blemishes, breakouts, pigmentation and redness. The Niacinamide content found in it is the key to help lighten your acne pigmentation and minimize the appearance of enlarged pores, fine lines and wrinkles.