Living Proof Living Proof Triple Bond Complex Hair Strengthener

New in Box | Full Size (45 mL) | Retail 45 What it is: A weekly leave-in, repair treatment clinically proven to rebuild the structure of hair. This patent-pending technology makes hair 8x stronger*, smoother and shinier after one use. Leave this 450 heat protectant on for 10 minutes before adding your styler and heat for best results.