California Cosmetology Written ExamHaircoloringHard
A cosmetologist is preparing an off-the-scalp lightener (powder bleach) mixture for a balayage service requiring maximum lift. What is commonly added to the lightener and developer mixture to boost its lightening power, and where must this mixture never be applied?
- AAn activator is added, and it may safely be applied directly to the scalp for extra lift
- BAn activator/booster is added to increase lifting power, and the mixture must never be applied to the scalp because it can cause chemical burns
- CA filler is added to increase deposit, and it must never touch previously colored hair
- DA neutralizer is added to slow the lightening process, and it must never be exposed to air
Show answer & explanationAnswer & explanation
Correct answer: B. An activator/booster is added to increase lifting power, and the mixture must never be applied to the scalp because it can cause chemical burns
Activators (boosters) are added to off-the-scalp lighteners to increase their lifting power for maximum lightening, but this strong mixture is formulated only for off-scalp use since it can cause severe chemical burns and is too harsh for direct scalp contact.
Why the other options are wrong
- A. Off-the-scalp lighteners with activators are unsafe for direct scalp application.
- C. Fillers are used in color correction to replace lost pigment, not to boost lightener strength.
- D. Neutralizers stop chemical processes (as in perms), not lightening boosters.
Off-the-Scalp Lightener & Activator
A powder lightener formulated with an added activator/booster for maximum lift, intended for use away from the scalp due to its strength and burn risk.
- Activators increase the lightening power of powder bleach
- Off-scalp formulas are too strong/irritating for direct scalp contact
- Used for techniques like balayage, foiling, or highlighting away from the scalp
Memory trick: Off-scalp lightener + booster = powerful, but keep it OFF the scalp.