Garnier Olia's 60% oil blend formula with natural flower oils and no ammonia gives you gorgeous color and healthier looking hair with up to 100% Grey coverage. The unique formula visibly restores hair's vitality as oils help reverse frizz and dullness for long-lasting radiant color and moisturized, silky, and shiny hair. The Colour Result: On Grey hair, colour will appear lighter than on non-grey hair, Test for allergies 48 hours before use.