This set contains: Plex Bond Multiply Formula Step 1 260 + Plex Bond Perfect Formula Step 2 2 x 260 ml. Revox B77 Plex Bond Multiply Formula is the first step in the advanced Revox B77 hair reconstruction system. Created specifically for professional use and to reduce hair damage during treatments at your salon. The concentrated formula for express repair leaves hair noticeably stronger. Combined with Revox B77 Plex Bond Perfect Formula at the salon, it completely transforms the hair. Protects color and is beneficial for all hair types. - Works to repair hair breakage - Restores and protects hair - Reduces damage during hairdressing treatments -For professional use only. It is used as a treatment: 1) Mix a small amount of Revox B77 Bond Multiply Formula with the chemical: bleaching, coloring, etc. 2) After the necessary treatment time has elapsed, rinse the hair well with Revox B77 Plex Bond Care Shampoo. 3) Follow with a generous amount of Revox B77 Plex Bond Perfect Formula as directed. Revox B77 Plex Bond Perfect Formula is the second step of the advanced Revox B77 hair reconstruction system. Created specifically for professional use to reduce hair damage after chemical hairdressing treatments, protect hair from further damage and prepare it for styling. . The intensely restorative formula works to repair hair porosity from within. When combined with Revox B77 Plex Bond Multiply Formula in the salon, it completely transforms hair. Protects color and is beneficial for all hair types. - Strengthens chemically treated hair - Restore broken links - Protects hair from further damage. How to use For professional use only It is used with a chemical treatment: 1) After the indicated processing time of the dye mixed with Revox B77 Plex Bond Multiply Formula, lighten the hair. 2) Apply a generous amount of Plex Bond Perfect Formula to towel-dried hair from roots to ends. 3) After 5 minutes, shampoo and condition. For best results, use Plex Bond Care Shampoo AND Plex Bond Care Conditioner. Used individually: 1) Rinse and towel dry hair. 2) Apply a generous amount of the product, focusing on the most damaged areas, and leave it to act for 5 minutes. 3) Shampoo and condition.