TCA, The Color and Lightener Accelerator - Original Clear Formula with the Gold Cap, processes with low heat in just 4-10 minutes! Work with permanent color, semi-permanent color, demi color, bleach, foil & high lift applications in half the time when added to any manufacturer’s color or lightening product. The Color Accelerator, TCA, is a hair color additive that slows down the processing of hydrogen peroxide while driving color molecules deeper into the hair shaft. The formula's antioxidant (Vitamin E) allows TCA to help develop the color molecules completely in less time while Jojoba Oil condition & moisturize the hair & scalp.