Infused with patented OLAPLEX Bond Building technology, this highly concentrated 4-in-1 reparative mask adds shine & body while providing intense moisture to treat damaged hair. Dispensing one dose at a time through its airless pump, no.8 is a 10 minute treatment. Use weekly for best results. Suitable & beneficial for all hair types. Vegan Cruelty Free Gluten Free, Nut Free Paraben Free, Sulfate Free Phthalate Free, Phosphate Free Colour Safe PH Balanced How to use: Apply to clean, damp hair mid-length to ends. Use sparingly on roots & work through with fingers. Leave on for 10 minutes then rinse fully & style as usual. Start with 2 pumps for shoulder-length hair. Use more for longer, thicker hair & less for fine or short hair. For the deepest repair possible at home use with Olaplex No.0 Intense Bond Building Hair Treatment & No.3 Hair Perfector once a week or as needed.