High performance vegan hair colour 100% grey coverage Up to 8 weeks of colour Colour booster mask restores vibrancy just like day one Revives the intensity of colour at week 3 or 4 in just 5 minutes. This hair colour provides long-lasting results and vibrant colour. The formula offers complete grey coverage and lasts for up to 8 weeks. Included colour booster mask revives vibrancy and intensity.