A professional neutralising purple shampoo for blonde hair that neutralises undesired yellow undertones leaving your hair feeling cleansed. The system helps to lock dyes within the hair fibre using patented technology*. Lock in your day 1 colour vibrancy for up to 100 days**. Up to 72hr glass shine*** Up to 72hr radiant hair*** Tone preservation*** *Patent granted in France **Instrumental test after 49 washes using the full Vitamino Color Spectrum routine ***Instrumental test after 4 weeks of application