What it does Proven to reduce breakage by 80%* with isolated proteins that are virtually identical to the keratin found in human hair. How it works Step one of the KeraTriplex® 2-step Repair Treatment, the single-shot vial transforms weak, broken and brittle strands into pillars of strength and protects from further damage. Added bonus Use with Keratin Intensive Treatment® as step two to hydrate and add healthy, silky shine. Paraben free. Color safe.