Garnier provides excellent home hair dye, allowing you to dye your hair in the comfort of your home. Garnier nutrisse ultra colour bold hair dye gives your hair nourished, vibrant and long-lasting colour. The exclusive colour boost technology boots your hair colour by infusing intense dyes at the heart of the fibre. Nutrisse ultra colour dye gives intense bold colour to your hair for up to 8 weeks. Choosing your perfect nutrisse shade: Your hair dye colour result will vary depending on your natural hair colour. Check the back of the pack. If you are deciding between 2 shades, always choose the lightest. Remember to always do your patch test 48 hours before colouring your hair at home. Use an old towel as hair colour may stain it. Apply moisturising cream to your hairline to avoid staining. Hair dye can only lighten your natural hair colour 1 to 2 levels. If you have long or thick hair, use two hair dye boxes.