Joico K-Pak Professional H.K.P. Liquid Protein Chemical Perfector is a pure liquid form of human hair keratin protein that improves chemical services as a porosity equalizer when used for color or to improve hair’s strength and integrity when perming or straightening.
What it does: When used with color services, color lasts longer, looks more vibrant and is even from scalp to ends.
What else you need to know: When used with perming or straightening, H.K.P. strengthens hair and results in improved texture patterns that last longer with less damage occurring during the processing stage.