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

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

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

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

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

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

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?

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

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?

the action of alkaline permanent waving lotion is to soften and ______ the hair.

hydroxide relaxers are usually sold in _____ formulas

before giving a relaxer, perform a scalp and hair analysis, testing for porosity and ___________ on several areas of the head.

The action of a guanidine relaxer causes the hair to _________

what is the main ingredient in alkaline perms?

what is the main ingredient in true acid or acid-balanced perms?

keratin proteins are made of long chains of ____________ inked together end to end like beads

The alkalinity of the perm should correspond to the resistance, strength & ___________ of the cuticle.

The chemical action of ________ breaks the disulfide bonds through reduction

General guidelines suggest that for fine, color treated or damaged hair a(n) __________ strength relaxer should be used