The Vitamino Color Spectrum Green neutralizing shampoo instantly neutralizes unwanted red reflections on dark brown to brown hair. The shampoo is formulated with green dyes and conditioning agents. The routine helps maintain the dyes in the fiber for an intense color from day one up to 100 days*. The result on the 5 dimensions of color**:1. Shine: ultra intense shine.2. Saturation: a rich and vibrant color.3. Contrast: optimal depth between diverse shades.4. Tone: unwanted reflections are neutralized.5. Brightness: the level of brightness or darkness is well preserved. The shampoo formula features una a luxurious creamy texture that transforms into una dense foam una upon application. It deeply cleanses the fiber for immediately nourished and stronger hair. *Instrumental test after using the Vitamino Color Spectrum routine. **Instrumental test with the complete Vitamino Color Spectrum routine after 4 weeks.