Question 1

What is the primary difference between soft wax and hard wax?

Accepted Answer

Soft (strip) wax is applied in a thin layer and removed with a cloth or muslin strip. Hard (no-strip) wax is applied thicker, hardens as it cools, and is removed by gripping the edge and pulling without a strip. Hard wax is generally preferred for sensitive areas (bikini, underarms, face) because it adheres to hair, not skin, reducing trauma.

Question 2

Waxing is contraindicated for clients using topical retinoids (Retin-A, tretinoin) because:

Accepted Answer

Topical retinoids (tretinoin, retinol, adapalene) increase cellular turnover, thinning the stratum corneum and making skin fragile and more susceptible to damage. Waxing on retinoid-treated skin can lift or tear the epidermis. Most protocols recommend discontinuing retinoids 5–7 days before waxing the affected area.

Question 3

Threading is a hair removal technique that:

Accepted Answer

Threading is an ancient hair removal technique originating in the Middle East and South Asia. A twisted cotton thread is used to trap and pull multiple hairs simultaneously from the follicle. It is particularly popular for eyebrow shaping and facial hair removal. Threading does not use chemicals and is not a permanent hair removal method.

Question 4

Waxing should NOT be performed on clients using:

Accepted Answer

Retinoids (topical vitamin A derivatives) thin the epidermis and accelerate cell turnover. Waxing over retinoid-treated skin can lift and remove the epidermis, causing burns and scarring. A minimum 2–3 week discontinuation is typically recommended before waxing.

Question 5

The correct temperature for hard wax (stripless wax) is typically:

Accepted Answer

Hard wax is applied at 120–130°F — warm enough to spread smoothly but not so hot as to burn. The wax is applied in a thick layer, allowed to cool and harden, then removed without a strip. Temperature testing on the inner wrist is always required before application.

Question 6

Soft wax (strip wax) is removed using:

Accepted Answer

Soft wax is applied in a thin layer and removed by pressing a fabric strip onto the wax, allowing it to adhere, then pulling the strip parallel to the skin against hair growth in a fast, fluid motion.

Question 7

Threading for hair removal uses:

Accepted Answer

Threading uses a twisted loop of cotton thread manipulated by the esthetician's hands to trap individual hairs at the follicle level and pull them out. It is a precise technique suitable for eyebrow shaping and facial hair removal.

Question 8

Which of the following is a contraindication for electrolysis?

Accepted Answer

Electrolysis should not be performed over active infections, open lesions, or inflamed skin, as the current could spread infection. Other contraindications include bleeding disorders, pacemakers, and clients taking blood thinners.

Question 9

The growth phase of hair (anagen) is important for laser hair removal because:

Accepted Answer

Laser hair removal targets melanin in the hair shaft and follicle. During anagen, the follicle is most actively producing pigmented cells and the shaft is fully connected to the bulb. This makes anagen-phase follicles most responsive to laser energy.

Question 10

After a waxing service, post-treatment care should include recommending the client:

Accepted Answer

Post-waxing skin is sensitized and follicles are open. Sun exposure can cause hyperpigmentation; heat sources can cause irritation or infection; and friction from tight clothing can cause folliculitis. Exfoliation should wait 24–48 hours.

Hair Removal Techniques Practice Questions

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