Hair Styling & Chemical Treatments Flashcards

Which type of hair pressing oil should be used sparingly to avoid what common styling problem?

Answer: Smoke and scorching

Too much pressing oil can cause the hair to smoke or scorch when heat is applied, damaging the hair shaft.

The 'croquignole' method of permanent waving wraps the hair:

Answer: From ends to scalp (tip to root)

Croquignole winding wraps hair from the ends toward the scalp, producing tighter curls at the ends and looser curls near the root.

When performing a virgin relaxer service, where should the product be applied first?

Answer: Most resistant area (usually the back crown)

A virgin relaxer begins at the most resistant area so it has the most processing time before moving to more fragile areas like the hairline.

Which of the following is a characteristic of an acid-balanced permanent wave solution?

Answer: Has a pH of 7.8-8.2, requires heat to process

Acid waves have a pH of 7.8-8.2 and require a heat source (dryer) to activate, resulting in gentler processing.

What does a 'piggyback' wrap technique accomplish in permanent waving?

Answer: Creates a uniform wave from root to end on long hair

The piggyback wrap uses two rods on one long hair section — one for the ends and one for the mid-length — to create even curl on very long hair.

A client experiencing scalp irritation during a relaxer service should be treated by:

Answer: Rinsing immediately with cool water and discontinuing the service

Scalp irritation during a relaxer is a sign of chemical reaction; the product must be thoroughly rinsed immediately to prevent burns.

The purpose of base cream applied before a relaxer service is to:

Answer: Protect the scalp and previously relaxed hair from the chemical

Base cream forms a protective barrier on the scalp and demarcation line to minimize chemical irritation and over-processing.