Organic Color Systems Intensifiers are designed to give deeper, brighter, more intense colors. Our Organge Intensifier increase the orange tones and gives hair a brighter, more vibrant, funky result. Add into all natural colors 4 to 10, all CR, BC and RC colors. Intensifiers can be used on their own when applied to pre-lightened hair as a semi-permanent color. They can also be added to conditioners and treatments as a temporary color. The lighter you lift the hair, the brighter the result and the edgier the color.