Tracked by Evreward since 2012, Cosmedix offers coupons, cash back rebates and rewards, with savings as high as $88 off. Cosmedix discount coupons are plentiful, usually available every month, and are often more valuable than similar merchants. Even when Cosmedix doesn't have a coupon, you can always get up to 15% cash back, and other great rewards, with every purchase.