This stylish and minimalist bottle contains the miracle-working ingredient bis-aminopropyl diglycol dimaleate, which helps strengthen and repair damaged hair from coloring, bleaching, perming, or heat-styling. A daily restoring and hydrating conditioner, this silky formula deeply moisturizes and strengthens hair while repairing broken hair bonds between salon or styling sessions, allowing you to maintain your favorite hair color and style without fear of damage. The No. 5 Bond Maintenance Conditioner is color-safe, sulfate-free, paraben-free, gluten-free, nut-free, and vegan-friendly. Use it alongside the No. 4 Bond Maintenance Shampoo and the No. 3 Hair Perfector weekly treatment.