Hair Styling & Chemical Treatments Flashcards

Which chemical bond in hair is permanently broken during a relaxer service?

Answer: Disulfide bonds

Relaxers permanently break disulfide bonds in the cortex, straightening the hair's natural curl pattern.

A client's hair turns orange after a single-process color. What level of underlying pigment is most likely present?

Answer: Orange

Orange underlying pigment appears at approximately level 6-7 when the hair has not been lightened sufficiently.

What is the primary purpose of a neutralizer in permanent waving?

Answer: Rebond broken disulfide bonds

The neutralizer (usually hydrogen peroxide) re-oxidizes and reforms the disulfide bonds around the shape of the rod.

Which sectioning pattern is most commonly used when applying a permanent wave to create uniform curl?

Answer: Brick-lay (staggered)

A brick-lay pattern staggers the rods to avoid consistent partings that can create splits or straight lines in the finished curl.

A sodium hydroxide relaxer is being applied to a client with color-treated hair. What is the safest course of action?

Answer: Use a lower-strength formula and perform a strand test first

Color-treated hair is more porous and fragile, requiring a milder formula and a strand test to assess integrity before a full service.

When blow-drying hair for maximum volume, the nozzle should be directed:

Answer: Upward against the cuticle at the roots

Directing airflow upward at the root lifts the hair away from the scalp and encourages volume at the base.

A 'frosting' technique in hair color refers to:

Answer: Pulling selected strands through a cap to lighten them

Frosting is a highlighting technique where small sections of hair are pulled through a perforated cap and then lightened.