Sassoon Magic in 100ml Magic On Spray achieve flawless color and healthy hair with the new pre-coloring treatment: Reduces hair breakage Increases hair fiber protection Improves smoothness Tone color with a more even color resultRecommended use:Pre-treatment: Heat 5-10 sprays of Magic On on dry hair under Climazon for 5 minutes to activate the amino acids, followed directly by your chosen colour service. Rinse with colour and continue as usual.Standalone service: After applying Magic On, dry hair for 5 minutes under Climazon to activate the amino acids. Rinse and continue with your normal finishing routine.