Permanent colors containing para-dyes would fall into what color category?

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

Answer: (B)

Permanent colors that use para-dyes rely on an oxidizing agent to activate the dye precursors. The para-dye molecules penetrate the hair and, with the developer, are oxidized and then form larger pigment molecules that become trapped in the cortex. This chemical change creates a durable, long-lasting color.

Direct dyes, in contrast, are pre-formed pigments that deposit without oxidation, so they’re not permanent in the same way. Toners are usually used to adjust tone after bleaching and are typically demi-permanent, not driven by a strong oxidative reaction. Non-oxidative colors are temporary and sit on the surface without altering the hair’s structure.