The K18 technology is not a temporary solution. It utilizes biomimicry to reconnect broken keratin chains caused by chemical or mechanical damage. The result is soft, smooth, repaired, and strong hair with luxurious bounce and shine. The more damaged the hair is, the more dramatic the results. It is clinically proven to work in just 4 minutes and is supported by stylists around the world. The K18 Professional Molecular Hair Repair Mask penetrates deep into the hair cortex in just 4 minutes, restoring the hair to its natural, youthful state. It soothes the hair cuticle and balances the hair's porosity.