Which statement describes non-oxidative color that has large and small color molecules (that penetrate the cuticle and enter the cortex) as described in the material?

• A. Semi-permanent
• B. Demi-permanent
• C. Temporary color
• D. Oxidative color

Answer: (A)

Non-oxidative color refers to color that doesn’t rely on a chemical reaction with developer to create or fix the shade. When the formula contains both large and small dye molecules, the large ones tend to sit on or just under the cuticle, while the smaller ones can penetrate the cuticle and enter the cortex to some extent. This combination gives color that lasts several washes without the use of strong oxidizers. That blend of behavior is characteristic of semi-permanent color.

Temporary color usually stays on the surface with mostly large molecules and washes out quickly. Oxidative color relies on a developer to open the cuticle and deposit color inside the cortex, using chemical reactions and smaller molecules, so it’s not non-oxidative. Demi-permanent also involves oxidation, though milder, and penetrates the cortex more than temporary.