what is the closer instant split-end seal cream? this lightweight 2-in-1 leave-in hair treatment + styling cream instantly seals split ends, smooths hair + eliminates frizz. who it's for made especially for those looking to close split ends, strengthen hair + reduce breakage due to everyday stressors, heat, and chemical treatments. fun fact: it's also great to use between salon visits to get that freshly-trimmed look! why it's special make amends with your split ends! this lightweight 2-in-1 treatment + styling leave-in cream softens, smooths, strengthens + instantly seals split ends* for less breakage + healthier-looking hair. immediately seals 96% of split ends in just one use.* safe for strands: clinically proven to be safe for color-treated hair.** how to use? Apply a dime-size to damp or dry hair, mid lengths to ends, prior to any additional styling products. add more product as needed depending on hair density + length. pro tip: apply a heat protectant after the closer.