ULTRA STRENGTH & SMOOTHNESS: Dove Bond Strength hair mask renews with every use and repairs 10 signs of damage in 1 minute* *4-step system HAIR MASK FOR CHEMICALLY DAMAGED HAIR: This hair mask with Peptide Complex repairs 3 years of visible damage in 1 use* *with 4-step system BIO-PROTEIN CARE: Our Bond Strength range* with Bio-Protein Care technology, designed to regenerate hair strength and refill it with 1 trillion protein strength builders with every wash. *shampoo, conditioner/mask & serum HOW TO USE: After using Dove Bond Strength Shampoo & Conditioner, apply into damp, clean hair and massage. Let it work for 1 minute and rinse. Use once a week or more. BACKED BY SCIENCE: This damaged hair repair hair mask uses Dove technology that’s backed by 10 years of research. Protecting, repairing, and restoring hair to reduce signs of damage. CARE YOU CAN COUNT ON: Globally, Dove does not test on animals. These hair care products are PETA approved and vegan.