Vitamino Color Spectrum Professional shampoo by L’Oréal Professionnel, enriched with Ferulic Acid & Citric Acid. 
The system helps to lock dyes within the hair fibre using patented technology* to lock in your day 1 colour vibrancy for up to 100 days**.
 
Proven Efficacy on the 5 colour dimensions***:
1. Shine: High Glass shine 
2. Vibrancy: Rich, vibrant colours
3. Contrast: Optimal perception between multiple shades
4. Tone: Helps neutralise unwanted reflects
5. Brightness: Level of brightness and darkness are well preserved
 
The caring shampoo formula comes with a luxurious creamy texture that turns into a dense foam once lathered leaving hair cleansed. 
 
*Patent granted in France
**Instrumental test after 49 washes using the full Vitamino Color Spectrum routine
***Instrumental tests after continued application of the full Vitamino Color Spectrum routine