Hair & Scalp Care Flashcards

Which layer of the hair shaft contains the pigment (melanin) that gives hair its color?

Answer: Cortex

The cortex is the middle layer of the hair shaft and contains melanin granules responsible for hair color.

What type of scalp condition is characterized by large, greasy, yellowish flakes and is associated with seborrheic dermatitis?

Answer: Pityriasis steatoides

Pityriasis steatoides is the oily, waxy form of dandruff linked to seborrheic dermatitis, producing large yellowish scales.

A client's hair stretches significantly when wet but does not return to its original length. This indicates:

Answer: Low elasticity

Low elasticity means the hair's disulfide bonds are weakened, so it cannot spring back after stretching.

Which scalp massage technique uses a firm, circular kneading motion with the fingertips?

Answer: Friction

Friction massage uses deep, circular pressure with the fingertips to stimulate blood flow and loosen debris on the scalp.

What is the primary purpose of a pre-shampoo (pre-poo) oil treatment applied before washing?

Answer: To protect hair from hygral fatigue during washing

A pre-shampoo oil treatment coats the hair to limit excessive water absorption and reduce hygral fatigue caused by repeated swelling.

Tinea capitis is best described as:

Answer: A fungal infection of the scalp

Tinea capitis is a contagious ringworm fungal infection of the scalp and hair follicles most common in children.

Which pH range is considered ideal for the scalp's acid mantle?

Answer: 4.5–5.5

The scalp's acid mantle has a natural pH of 4.5–5.5, which inhibits bacterial growth and keeps the cuticle smooth.