Tracked by Evreward since 2005, Proactiv offers coupons, cash back rebates and rewards, with savings as high as 25% off. Proactiv discount coupons are seasonal, appearing every three to four months, and are often more valuable than similar merchants. Even when Proactiv doesn't have a coupon, you can always get up to 94% cash back, and other great rewards, with every purchase.