Joico Vero K-Pak Chrome Activator is a professional hair color creme developer that does not lighten your hair's natural color. Use it as an enhancement or to make the shade more intense. You can use this to darken the color or blend with grays. The activator can also be used to balance color or give you hair some shine and conditioning.
Instructions
Mix 1 part Vero K-PAK Chrome to 2 parts Activator.