Chapter 15 Chemical Services

Front

acid-balanced waves

Back

Perms with 7.0 or neutral pH; process more quickly and produce firmer curls than true acid waves.

Front

alkaline waves

Back

Also known as cold waves; have pH between 9.0 and 9.6, use ammonium thioglycolate (ATG) as the reducing agent.

Front

ammonia-free waves

Back

Perms that use an ingredient that does not evaporate as readily as ammonia, resulting in very little odor.

Front

ammonium thioglycolate (ATG)

Back

Active ingredient or reducing agent in alkaline permanents.

Front

base control

Back

Perm rod's position in relation to its base section; determined by the angle at which the hair is wrapped.

Front

base cream

Back

Also known as protective base cream; oily cream used to protect the skin and scalp during hair relaxing process.

Front

base direction

Back

Angle at which the rod is positioned on the head; also, the directional pattern in which the hair is wrapped.

Front

base placement

Back

Refers to the rod's position in relation to its base section; determined by the angle at which the hair is wrapped.

Front

base relaxers

Back

Relaxers that require a separate application of a base cream before a relaxer application.

Front

base sections

Back

Subsections of panels into which hair is divided for perm wrapping; one rod is typically placed on each base section.