What type of developer does a long-lasting semi-permanent color use?

• A. High volume developer to lift color
• B. No developer is used
• C. Low volume developer to deposit only
• D. Ultra strong developer

Answer: (C)

Long-lasting semi-permanent color works by depositing pigment into the hair rather than lifting its natural color. This is achieved with a low-volume developer, which provides just enough activation to allow color molecules to enter the hair but not to break bonds and lighten the shade.

Using a low-volume developer (a small amount of peroxide) keeps the process focused on depositing color, which is why the result lasts longer than a temporary color but remains gentler than a permanent color that uses higher-volume developers to lift color. If a high-volume developer were used, you’d see significant lifting, not deposit. If no developer were used, there wouldn’t be oxidation to help pigment penetration, so the color wouldn’t set as effectively. An ultra-strong developer would also lift more than desired, altering the shade beyond a semi-permanent deposit.

So the correct approach is deposit-only color with a low-volume developer.