Garnier Nutrisse Ultra Color bold, intense at home hair dye gives you nourished, vibrant, long-lasting hair colour. The exclusive colour boost technology boots your colour by infusing intense dyes at the heart of the fibre, for up to 8 weeks of intense bold colour. Choosing your perfect Nutrisse shade: Your hair dye colour result will vary depending on your natural hair colour - check the back of pack. Remember to always do your patch test 48 hours before colouring your hair at home. Top tips: 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.