The lightweight moisture-rich Keratin Infusion Replenisher adds shine, hydrates, and smoothes hair, during daily blow-drying and heat styling. While dramatically cutting blow-dry time, this leave-in hair treatment makes hair easier to style. Powered by proprietary Signature Keratin to fight frizz and help keep hair smoother, and longer. Humidity-resistant formula maintains the results of Keratin Complex® smoothing treatments. Now available in TSA-friendly travel size!