Discover Olia by Garnier, the first ammonia-free, oil-activated permanent hair dye. With its ODS technology, 60% oil, Olia visibly improves the quality of the hair, hair dye after hair dye. Thanks to a maximum colour power, Olia offers you a long-lasting, rich and vibrant colour. Its wide palette of shades will meet all your colour desires, while preserving the quality of your hair. With Olia, enjoy a real moment of pleasure while dyeing your hair: Enjoy the velvety texture of the blend of the colourant cream and the developer cream; enjoy its delicate floral fragrance during the application and extend this experience when you use the silk and shine conditioner, after you have dyed your hair.