California Barber Written ExamHair Care ServicesEasy
During a permanent waving service, what is the primary purpose of the neutralizer (oxidizer) applied after the waving lotion has been rinsed out?
- ATo reform the disulfide bonds in their new curled shape.
- BTo swell the hair cuticle for better penetration of the waving lotion.
- CTo remove excess waving lotion and prevent over-processing.
- DTo break down the disulfide bonds in the hair.
Show answer & explanationAnswer & explanation
Correct answer: A. To reform the disulfide bonds in their new curled shape.
The neutralizer (oxidizer) in permanent waving is typically hydrogen peroxide-based and is applied to re-harden the hair by reforming the disulfide bonds into their new, desired curled or waved shape.
Why the other options are wrong
- B. Swelling the cuticle is primarily done by the alkaline waving lotion.
- C. Rinsing removes excess waving lotion; neutralization is a chemical process.
- D. Breaking disulfide bonds is the function of the waving lotion (reducing agent).
Permanent Wave Neutralizer
An oxidizing agent, usually hydrogen peroxide, applied after the waving lotion to reform disulfide bonds and permanently set the hair's new curl pattern.
- Also known as oxidizer or re-bonding lotion.
- Stops the action of the waving lotion.
- Essential for the longevity of the perm.
Memory trick: Neutralizer Nurtures New bonds.