Which hair color classification is most commonly used in salons?

Demi permanent haircolor is the most commonly used classification in salons because it offers a balance between the lasting effects of permanent haircolor and the gentle nature of temporary haircolor. This type of color contains no ammonia and typically has a lower concentration of peroxide, allowing it to deposit color while subtly enhancing the hair's natural tone or covering gray hair effectively.

Demi permanent haircolor usually lasts for about 20 to 28 shampoos, making it a versatile option for clients looking for a change without the long-term commitment associated with permanent dye. This option is ideal for clients who desire a more natural look or wish to experiment with color while minimizing damage to their hair. The application process is also relatively straightforward, requiring less skill than some of the advanced techniques used for highlights, which involve adding lighter shades to specific sections of hair.

While temporary haircolor provides a quick solution with minimal commitment, it usually washes out after a few washes and is not suitable for longer-lasting results. Highlights are a popular service but require a more involved application process, making them less universally used than demi permanent color.