Your favorite conditioner is now enriched with the power of keratin! Smooth, sleek, and strong are all simpler than ever thanks to the essential conditioners and effortless spritz-on application of It’s a 10 Miracle Leave-In Conditioner Plus Keratin. This lightweight, deliciously-smelling conditioner penetrates deep into the hair shaft to rebuild dry, brittle and damaged hair from the inside out. Hair’s most important nutrient, keratin, is a powerhouse of revitalization and strength.