Hair treatment to combat split ends and broken hair | A "protein cyclone" that will restore beauty and health to your hair. CP-1 Premium Silk is a regenerating, leave-in treatment for dry and damaged hair. It contains proteins that penetrate deep into the hair, filling in gaps and forming a protective layer on the cuticle. This treatment is also excellent for those who frequently use hair dryers, straighteners, and other appliances: quinoa extract perfectly protects them from damage.