Chemical Texture Services

what type of hair is fragile, easier to process and more susceptible to damage from perm services?

• coarse

• medium

• non-elastic

• fine

a properly processed permanent wave should break and rebuild approximately __________ % of the hair's disulfide bonds

• 25

• 50

• 75

• 100

neutralization rebuilds the ___________ bonds that were broken by the waving solution

• sodium

• hydrogen

• disulfide

• peptide

what type of perm is activated by heat created chemically within the product?

• endothermic

• alkaline

• exothermic

• acid balanced

a perm activated by an outside heat source (usually a conventional hooded dryer) is known as __________.

• exothermic

• endothermic

• acid balanced

• thio free

Waves that process more quickly and produce firmer curls than true acid waves are _________.

• alkaline

• acid balanced

• ammonium thioglycolate

• sodium hydroxide waves

What type of hair usually requires more processing time than medium or fine hair?

• coarse

• medium

• fine

• non-elastic

what type of liquid protein conditioner can be applied to the hair and dried under a warm dryer for five minutes or more prior to neutralization if hair is damaged?

• alkaline

• emulsified

• ammonia-free

• acidic

if too many ______________ bonds are broken in the perming process the hair will be too weak to hold a firm curl.

• disulfide

• hydrogen

• salt

• peptide

What test is effective for determining the correct processing time, expected results, rod and wrap choice, how color will be affected and if the hair will break or frizz?

• patch test

• strand test

• porosity test

• preliminary test curl