Retinol Serum is one of the best serum to incorporate in your sincare regimen. It helps to treat acne, dark spots, and wrinkles. It works best on the outermost layer of the epidermis and stimulates collagen & new skin cell production. It also contributes to speeding the cell turnover cycle, providing youthful & bouncy skin. But again, you can layer it with just anything. So here we is a guide on layering retinol serum. Best retinol serum| retinol serum benefits| how to layer retinol serum
