Did you know that hair is 90% protein? Daily damage strips this protein away, leading to weakened hair that is more prone to breakage. That’s why Dove Bond Strength + Biotin Shampoo is formulated with patented Bio-Protein Care technology, backed by 10 years of research. Part of our Damage Therapy system, this shampoo protects, repairs and restores hair to reduce signs of damage. Enjoy stronger hair and up to 25x less breakage*. We believe no young person should be held back from reaching their full potential. *When using Dove Bond Strength + Biotin Shampoo and Conditioner vs non-conditioning shampoo. -Get up to 25x less breakage when using Dove Damage Therapy Bond Strength + Biotin Shampoo -Designed to strengthen weakened hair prone to breakage -Features Bio-Protein Care technology backed by 10 years of research -Protects, repairs and restores hair to reduce signs of damage -PETA-Approved Vegan -We do not test on animals anywhere in the world