The Lightening Activator, Powder Lightener For All Stages (0.5 oz 12 Pack) is designed for professional use and is perfect for any volume developer. It allows full control of the speed, power, and gentleness of lift, ensuring total lift control with the use of any 20, 30, or 40 volume cream developer. This product is dust-free and fast-acting, making it suitable for both off-scalp and on-scalp applications. It is important to follow the package instructions for optimal results and to keep it in a cool, dry place out of reach of children.