Olia 1.0 - Dark Black hair dye by Garnier is an innovative hair dye that gives you a natural and beautiful color. This dye features an ammonia-free formula, reducing the harmful effects on the hair and making it suitable for frequent use. Thanks to the Oil Technology, Olia dye nourishes the hair, maintaining its moisture and softness. This dye provides full coverage for gray hair and lasts long, ensuring you a stunning and long-lasting color appearance. It comes in a variety of shades to meet all your color preferences.