Olia shade 3.0 Darkest Brown is a permanent hair color powered by oil and without ammonia. It is a deep brown shade that covers 100% of gray hair for vibrant, long-lasting color on all hair types. Ideal for those with natural hair ranging from light brown to black. This ammonia-free hair color contains a 60% oil blend with natural flower oils to improve the texture and shine of the hair, resulting in visibly healthier, hydrated, and up to 3x shinier hair compared to uncolored, unwashed hair. It is also free of parabens, silicones, and phthalates, and is certified by Leaping Bunny as cruelty-free and vegan.