Cosmetology Chemical Services

Question 1

What is the primary active ingredient in most permanent wave (perm) solutions?

Accepted Answer

Ammonium thioglycolate

Answer

Hydrogen peroxide

Answer

Sodium hydroxide

Answer

Resorcinol

Question 2

A virgin relaxer application is applied from which area first?

Accepted Answer

Crown to nape, then sides and front

Answer

Hairline to crown

Answer

Ends to roots

Answer

Uniformly throughout

Question 3

The pH of a lye relaxer (sodium hydroxide) typically falls in what range?

Accepted Answer

12–14

Answer

3–5

Answer

6–7

Answer

9–10

Question 4

What is the purpose of a neutralizer after a perm service?

Accepted Answer

Remove the waving lotion and re-form disulfide bonds

Answer

Add moisture to the hair

Answer

Prepare hair for color

Answer

Condition the scalp

Question 5

What does the term 'double-process color' refer to?

Accepted Answer

Lightening the hair first, then applying a toner

Answer

Applying two shades of color simultaneously

Answer

Coloring hair twice in one day

Answer

Using two developers at once

Question 6

Which haircolor classification can only deposit color and cannot lighten the natural hair?

Accepted Answer

Both B and C

Answer

Permanent color

Answer

Semi-permanent color

Answer

Demi-permanent color