The first hair therapy that seals the color for a zero loss of color There is nothing better than leaving the room with an intense and real color. A good colorist will create the perfect balance of tones to complement the client's style and skin color. It is a real science to get the perfect tone, since everyone wants their color to remain as real as possible as long as possible.This is where BC pH 4.5 Color Freeze comes into play. The patented pH 4.5 Balancer Technology not only seals the colored hair surface like the other conventional care brands but, more importantly, seals the color pigments within the hair matrix for superior perfect color. ADVANCED TECHNOLOGY. After coloring, current care technologies seal mainly the cuticle but completely disregard the structure of the matrix, which can lead to a loss of strength, breakage of the hair and a drastic loss of color.When the hair is adjusted to its optimum pH 4.5, the microfibrils of the matrix that wrap the cortex are tightened and stabilized, sealing the color pigments within the capillary structure. In combination with Cell Perfector Technology, the capillary surface is sealed to perfection providing protection against external aggressions such as water or drying with a dryer.