OSIS by Schwarzkopf Slick Flattering Liquid flattens and flatters like nothing else ever has. Soft. Smooth. Gently moisturises naturally curly or permed hair. The others are flat out trying to keep up. A no commitment styling balm for naturally curly and permed hair. Have the best of both worlds, straight hair one day, curly the next.
IMPORTANT NOTE***OSIS X-tra Flat was replaced by OSIS Slick Flattening Liquid. We're now shipping the new OSIS Slick for all X-tra Flat orders.