Bring your hair back to life with Revolution Beauty London Haircare R-Peptide4x4 Leave-In Repair Mask. This leave-in treatment mask works wonders for bleached/damaged hair. Use after shampooing, no conditioner required. Conditioners can include silicones and can give a coating to the hair. R-peptide4x4 is a leave in treatment mask, so will work best if able to penetrate into the hair cuticle and remains in hair, continuing to work even inbetween washes** R-Peptide 4x4 is a unique peptide blend to instantly repair signs of damaged hair with 4 key benefits: Clinically proven to Repair signs of damaged hair Reduces signs of breakage and appearance of split ends Restores, strengthens and softens Protects against bleaching and heat styling Directions for use: Shampoo hair Rinse with warm water Do not apply conditioner Apply product to towel dried hair through mid-lengths to ends Style as desired Good to Know: *Based on a clinical study and consumer trial of 117 participants with bleached/damaged/dry hair **Clinically proven upto 3 washes Cruelty-free Vegan Depth: 50 MM Height: 100 MM Width: 50 MM