Printable Garnier coupons are available online by signing up as a member on the Garnier website. Another site with printable coupons for Garnier, as of 2015, is CouponSherpa.com.
By signing up to be a member on Garnier's website, customers have access to manufacturer's coupons, as well as opportunities to receive samples and news on products. Coupon Sherpa has many manufacturer's coupons for a variety of brands, and they often provide ones for Garnier products. Just type in the product name in the search bar, which brings up a page with available coupons to be printed, as well as other special offers from Garnier.