Aniline derivative tint is another name for:

• A. Temporary color
• B. Semi-permanent color
• C. Permanent hair color
• D. Conditioning treatment

Answer: (C)

Aniline derivative tint refers to permanent hair color. It uses oxidation dye precursors known as aniline derivatives. When mixed with a developer like hydrogen peroxide, these small molecules penetrate the hair shaft and undergo chemical reactions inside the cortex to form larger color molecules. That change inside the fiber creates lasting color that remains until the hair grows out or you recolor.

Temporary colors sit on the surface of the cuticle and wash out quickly, while semi-permanent colors use dyes that don’t form lasting bonds in the cortex and fade with washing. Conditioning treatments don’t color hair at all; they condition and add shine. Also, because aniline derivatives can cause allergies, practitioners typically perform a patch test before use.