This depends largely on the type of acne scar, says Fenton, who points out that no topical product is going to yield a large improvement for pitted acne scars. He says over-the-counter products are better able to help fade the discoloration associated with acne, citing exfoliating formulas that contain ingredients such as retinoids and glycolic acid, and brightening formulas that contain ingredients such as hydroquinone, tranexamic acid, and vitamin C as good choices.