This clean ingredients, easy-to-use spray treatment actively repairs broken disulfide bonds to restore hair structure in just 10 minutes. Disulfide bonds are permanent chemical bonds that maintain the structure of proteins in the hair. This treatment repairs chemical, mechanical and environmental damage for all types and textures; at home. The spray bottle delivers a luxurious continuous spray mist, while patented biodiffusion bond repair technology continues to repair each strand for hours, until it is washed out. It is clinically proven scalp safe. The kit includes an empty sprayer bottle and two concentrate vials. The concentrate is designed to be mixed with water, which makes it easier to apply and creates enough Bond Repair Treatment to use 1-2 times a week, as recommended.