Amazon has the CeraVe Skin Renewing Nightly Exfoliating Treatment | Anti Aging Face Serum on sale for only $12.85 Shipped when you clip the 25% off coupon! Plus, you can also take advantage of this offer to Buy 1, Get 1 40% off! There are a few other items included in that sale too. Consistent, gentle exfoliation can help improve visible signs of aging, including dullness and discoloration. Lactic and Glycolic Acids are chemical exfoliants, which feel less harsh than physical ones like face scrubs.