Make your hair shiny and strong againOlaplex NO.0 Intensive Bond Building Hair Treatment is the first step in a two-step treatment that effectively revives tired and dry hair alongside the hair treatment \"Olaplex NO.3 Hair Perfector\". NO.0 can be used alone and treats dry and thin hair with a nice result that give more shiny, soft and strong hair. For an even better result, it is used as a primer in the two-step treatment, where the hair bonds are rebuilt and strengthens and protects the integrity of the hair. The two-step treatment provides a deeper repair of the hair and has visible results already after first use.Application:Distribute NO.0 in dry hair from root to tip.Distribute it slowly and in small portions at a time, allowing it to be absorbed while applying.The hair should be damp, not drenched by the product.Let it work for 10 minutes.Distribute NO.3 in the hair while NO.0 is still in.Comb the hair through if necessary.Let it work for at least another 10 minutes.Rinse and wash your hair with shampoo and conditioner.Use the two-step system once a week.For very damaged hair, it can be used 2-3 times a week.Advantages:Beautiful hair treatment by Olaplex.Recommended for all hair types.Can be used alone.Feels light and easily distributed in the hair.Absorbed quickly.Emollient effect.Used as the first step in two-step treatment for optimal effect.Acts as a primer for the hair.Provides a deeper repair of the hair.Rebuilds the bonds of the hair.Strengthens and protects the integrity of the hair.Vegan.Cruelty-free.Free of parabens, phthalates, sulfates and gluten.