Powered by the reparative K18PEPTIDEâ„¢- the K18REPAIRâ„¢ service (K18 PRO mist + PRO mask) strengthens and fortifies hair before and reverses damage after salon services. Giving you the confidence to push transformations further on stronger- healthier hair. Pro Hair Mist: This PRO-exclusive product helps services apply and perform better- leaves hair healthier- and color lasts longer. Works in just 4 minutes in a convenient spray-on format. Pro Hair Mask: This leave-in treatment mask repairs hair damage and restores hair to a healthy state after salon services. Powered by the K18PEPTIDEâ„¢ to reconnect broken polypeptide chains and disulfide bonds to renew strength and elasticity in just 4 minutes. Includes: 2x K18 Professional Molecular Repair Hair Mist 5oz K18Pro K18 Professional Molecular Repair Hair Mask 5oz