What classification of color coats the surface of the cuticle with large color molecules of non-reactive direct dyes?

• A. Semi-permanent Colors
• B. Permanent Colors
• C. Demipermanent Colors
• D. Temporary Colors

Answer: (D)

Coating the surface with large, non-reactive direct dye molecules means the pigment sits on top of the cuticle rather than entering the cortex or undergoing a chemical change. Because these molecules stay on the outer layer and don’t react, they’re easily removed with washing, so the color lasts only briefly. That surface-held, quickly fading behavior is the hallmark of temporary colors. In contrast, semi-permanent and demi-permanent colors involve smaller molecules or processes that allow some interaction with or penetration of the hair, and permanent colors rely on a chemical change in the cortex to create lasting color. So the described scenario aligns with temporary colors.