Barber State Board Exam Complete Practice Test

The use of hydrogen peroxide in hair coloring, particularly with high-lift colors, is crucial for achieving the desired level of lift and lightening. In this context, volume refers to the concentration of hydrogen peroxide, which determines its oxidative strength.

High-lift hair colors are specifically designed to achieve maximum lift in a single application, especially for darker hair. To accomplish significant lightening levels, a higher concentration of hydrogen peroxide is needed. Typically, 40 volume peroxide is used with high-lift colors because it contains a strong developer that provides the necessary lifting power to achieve several levels of lift from the natural hair color.

Using 40 volume peroxide allows for effective opening of the hair cuticle and penetration of the color into the hair shaft, facilitating the lightening process. It is essential to note that while 40 volume provides maximum lift potential, it should be used with caution, as it can also lead to excessive damage if not applied correctly or if the hair is already compromised.

Lower volumes, such as 10, 20, or 30, do not offer the same degree of lightening. They are more suited for standard coloring applications or gentler lifts, which makes them unsuitable for high-lift color products that aim for intense lightness.