Which type of hair color is designed to last the longest?

Permanents color is specifically formulated to provide the longest-lasting results among the different types of hair color options available. This type of color works by penetrating the hair shaft and chemically altering the natural pigment of the hair, effectively changing the color at a molecular level. This allows for longer durability, often lasting through multiple washes, and requires a more extensive process involving the use of an oxidation agent and a developer.

In contrast, temporary color coats the hair's surface and can be easily washed out with shampoo, typically lasting only until the next wash. Semi-permanent color, while more resilient than temporary options, still does not penetrate as deeply as permanent color and generally fades more quickly. Highlighting color is focused on lifting and adding lighter tones to the hair without necessarily providing an all-over color change, which may not last as long as a permanent color application.

Overall, permanent color is best suited for clients looking for a long-term color change that requires minimal maintenance compared to the other options.