Keep that 'fresh from the salon' look with the Aveda Colour Conserve Daily Colour Protect leave-in treatment. It works to seal in hair colour and leave your locks healthy and happy! Aveda Colour Conserve Daily Colour Protect helps seal in your hair colour and keeps that look for up to 6 weeks! It's the only Aveda leave-in treatment with the colour conserve complex, developed by Aveda pros specifically for your colour-treated hair. Directions of use: After shampooing massage into the lengths of your hair and leave in. Use once a week.