Maximum color efficiency. Ammonia-free permanent color with natural floral oils Garnier Olia is the first permanent ammonia-free color with natural color enhancing floral oils up to 100% gray coverage. Color after color, visibly improve the quality of your hair for a brighter and more beautiful color and a silkier and more cared for hair. Instructions for Use: Apply the product on dry, unwashed hair. Massage the product on your hair and leave for 30 minutes. Add a small amount of water to the hair and massage again. Rinse hair thoroughly.