FREE Milady Chemical Texture Services Questions and Answers

Question 1

The two principal actions in permanent waving are:

Accepted Answer

Physical and chemical

Answer

Permanent waving involves a physical change, which is the wrapping of the hair on perm rods, and a chemical change, caused by the waving lotion and neutralizer. Both actions are required to restructure the hair's disulfide bonds.

Question 2

What type of curl is produced by a concave perm rod?

Accepted Answer

A tighter curl at the ends and a looser curl near the scalp

Answer

Concave rods are smaller in diameter in the center and larger on the ends. This design causes the hair wrapped around the smaller center to form a tighter curl, resulting in a curl that is tighter at the ends and looser near the scalp.

Question 3

The main active ingredient in an alkaline permanent wave is:

Accepted Answer

Ammonium thioglycolate

Answer

Ammonium thioglycolate (ATG) is the reducing agent used in alkaline perms, which are also known as cold waves. It works at a higher pH to swell the cuticle and break the disulfide bonds in the hair's cortex.

Question 4

What is the primary function of the neutralizer in a permanent wave service?

Accepted Answer

To rebuild and reharden disulfide bonds

Answer

The neutralizer, typically containing hydrogen peroxide, performs two functions: it deactivates any remaining waving lotion and rebuilds the disulfide bonds into their new curled shape. This process locks the curl into place.

Question 5

Hair with high porosity generally requires which type of chemical service solution?

Accepted Answer

A less alkaline solution and shorter processing time

Answer

Highly porous hair has a raised cuticle layer that absorbs chemicals quickly and can be easily damaged. It requires a less alkaline solution (lower pH) and a shorter processing time to prevent over-processing and breakage.

Milady Cosmetology Practice Test

Milady Cosmetology Practice Test

FREE Milady Chemical Texture Services Questions and Answers