Change up your style without damaging the condition of your hair using the 1.0 Deep Black Olia Permanent Hair Dye from Garnier. Effective yet nourishing, the formula provides up to 100% grey coverage, colouring your hair without risking its health. The velvety non-drip formula ensures easy application, offering optimum scalp comfort. Powered by 60% hair oils and free from ammonia, this formula visibly improves the appearance of hair, leaving it soft and silky. Why should you have to pick between hair colour and haircare? The first of its kind, this innovative formula brings you the best of both worlds. Gracing your locks with vivid, long lasting colour, this oil powered dye is the next step in haircare.