hair2

If using a "no base" relaxer, it is recommended that a protective cream be applied _________.

• at the nape of the neck

• over the earlobes

• the frontal hairline

• on the hairline and around ears

Inspecting the action of the relaxer by stretching the strands to see how fast the natural curls are being removed is called _________.

• periodic patch testing

• periodic relaxer testing

• periodic strand testing

• periodic elasticity testing

Of the general types of hair relaxers which one does not require pre-shampooing?

• sodium hydroxide

• sodium thioglycolate

• ammonium thioglycolate

• acid-based relaxers

One safety precaution for hair relaxing is to avoid _________ the scalp with the comb or fingernails.

• massaging

• scratching

• smoothing

• stimulating

Relaxers which are ionic compounds formed by a metal which is combined with oxygen and hydrogen are known as _________.

• guanidine hydroxide relaxers

• metal hydroxide relaxers

• low-pH relaxers

• no-base relaxers

Sodium hydroxide relaxers are commonly called _________.

• guanidine hydroxide relaxers

• low pH relaxers

• lithium hydroxide relaxers

• lye relaxers

The action of a sodium hydroxide relaxer causes the hair to _________.

• swell

• shrink

• harden

• set