Hair and Scalp Treatments Living Proof Timeless Pre-Shampoo Treatment 177ml/6oz Review December 26, 2018 TimePredator 0 Comments Beauty & Personal Care, Hair Care, Living Proof It preserves more moisture within the hair shaft It eliminates frizz Leaves soft and shiny hair More It preserves more moisture within the hair shaft. It eliminates frizz and close the cuticle to create smooth and shiny hair. And it causes less damage to the hair cuticle during styling.