An ultra-conditioning 'at home' treatment with Fibre Bond Technology. CHROMAPLEX BOND SUSTAINER 3 is suitable for damaged hair or colored hair.How It Works:An ultra-conditioning 'at home' treatment with Fibre Bond Technology. Use Chromaplex Bond Sustainer #3 twice weekly to maintain hair strength, sensational shine and suppleness. Containing the same active ingredient found in Steps 1 & 2, this strengthening conditioner continues to links bonds within the hair maintaining strong, healthy hair for longer.Directions :Shampoo hair as normal and towel dry. Apply a small amount of product from roots to tips. Comb through. Leave for up to 10 minutes before rinsing thoroughly.