The pH range of alkaline perms is:

• Between 6 and 6.5
• Between 7.8 and 8.2

• Between 9 and 9.6
• Between 10 and 10.5

Another name for alkaline waves is ___________ waves.

Another name for true acid waves is __________ waves.

Acid waves are most useful for these types of hair:​ (a)  

Alkaline waves are most useful for these types of hair: ​ (b)  

• damaged
• resistant

The layer of the hair that contains the bonds that must be broken for perming and relaxing to take place is the:

• medulla
• cuticle
• follicle
• cortex

Changing the natural wave pattern of the hair is made possible by the breaking of the:

• end bonds

• side bonds

• ionic bonds
• peptide bonds

The bonds that must be broken for permanent change are:

• disulfide bonds

• hydrogen bonds

• salt bonds

• emotional bonds

The pH range of true acid perms is:

• Between 3.0 and 4.0
• Between 8.0 and 9.0
• between 7.8 and 8.2

• Between 4.5 and 7.0

The most commonly used perms in today’s salons are:

• acid balanced

• true acid

• alkaline

• ammonia free

The major difference between a wet set and a perm is the:

• Type of end bonds broken

• type of side bonds broken

• length of time they are left in

• size of the wrapping tools