Which category includes oxidative colors?

Which category includes oxidative colors?

• A. Direct Dyes
• B. Oxidative Colors
• C. Toners
• D. Non-Oxidative Colors

Answer: (B)

Oxidative colors are defined by using an oxidizing developer to trigger chemical reactions in the dye precursors. This reaction builds larger pigment molecules that penetrate the cortex, giving longer-lasting color and grey coverage. This is what sets oxidative colors apart from direct dyes, which are pre-formed color molecules that deposit without oxidation, and from non-oxidative colors, which sit on the hair surface without undergoing an oxidation process. Toners are used to adjust or neutralize tone after lightening and are categorized separately because their primary role is tonal refinement rather than developing color through oxidation.