Oil can do a lot more than just condition your hair. Oil enhances the blonde hair color outcome when concentrated at the heart of the Olia permanent blonde hair dye recipe. Garnier Olia permanent hair colour is a 60% oil-powered product with natural flower oils and is ammonia-free. This at-home hair coloring visibly enhances hair quality, with 3x shiner** and 35% smoother** hair. Olia home hair color will also deliver the best color performance for opulent, vibrant, and long-lasting blon