ColorOnly’s intelligent, lightning fast processing hair dye contains micro-pigments that bond to the hair and magically processes in only 10 minutes. This product advancement ensures zero risk of over-processing. ZERO HARSH SMELLS - We formulated our hair color to eliminate all harsh smells so your home won’t smell like a chemical plant. ColorOnly UV filters protect your color from fading due to sun exposure. ColorOnly uses smart Keratin which locates and bonds to the areas of hair that are most damaged. This advanced processing simultaneously repairs your hair as it is being color-treated.