Rusk Universal Shine Enhancing 30V Cream Developer in the 33.8 fl.oz size is a versatile product commonly used in hair coloring applications. The "30V" designation indicates the volume of peroxide in the developer, with 30V being a moderate strength commonly used for lifting natural hair color by several shades or for achieving lighter results. This cream developer is formulated to work with hair color or lightening products to activate color molecules and ensure consistent, vibrant results. It provides ample product for multiple applications, making it suitable for both personal and professional use. Users typically mix this cream developer with their chosen hair color or lightener according to the instructions provided with the specific hair coloring product. Its creamy consistency ensures easy mixing and application, resulting in smooth and uniform coverage. Whether you're a salon professional or an at-home enthusiast, the 33.8 fl.oz size offers convenience and value, ensuring you have enough developer on hand for your hair coloring needs.