This chic and minimalist bottle holds the miracle-working active ingredient bis-aminopropyl diglycol dimaleate, which will help strengthen and repair damaged hair post colouring, bleaching, perming or heat-styling. A daily restoring and hydrating conditioner, this silky fluid deeply hydrates and strengthens hairs as well as repairing shattered hair bonds in-between your salon or styling sessions so you can carry on maintaining your favourite hair colour and style without the worry of damaging your hair beyond repair. The No 5 Bond Maintenance Conditioner formula is also colour- sulfate- paraben- gluten- and nut-free as well as vegan-friendly too. Use alongside the No. 4 Bond Maintenance Shampoo as well as the No 3 Hair Perfector weekly treatment.