9.4 Hair Removal Contraindications, Medications & Client Screening

Screening Is the Skill

Under the updated national outline, Hair Removal carries 15% of the theory examination and its three named sub-topics are hair removal safety, infection control, and contraindications to hair removal services. Nothing in the outline mentions brow shape or artistry. The examination is asking whether you can tell when not to wax.

That emphasis is well placed. Wax removes the stratum corneum along with the hair. On skin that has been thinned by a drug, an acid, a laser or the sun, wax removes considerably more than the stratum corneum, and the result is a raw, weeping strip that can scar and hyperpigment.

Absolute Contraindications

These cancel the service. No waiver, no technique adjustment, no "we'll be gentle."

Note the second row carefully. Tennessee does not simply advise against it: the rule prohibits the service unless written permission from a physician is secured.

Relative Contraindications — Modify, Do Not Necessarily Cancel

Building the Screening Question Set

A usable pre-wax screen is short and always asked, even of regulars:

1. "Are you taking any oral medication for acne — now, or in the past year?"
2. "Are you using any retinoid, acid or prescription cream on this area?"
3. "Have you had a peel, laser, IPL or microdermabrasion here recently?"
4. "Any sunburn, sunbed use or heavy sun on this area in the last few days?"
5. "Have you ever reacted to waxing?"
6. "Any medical conditions or medications I should know about — diabetes, blood thinners, autoimmune conditions?"
7. "Are you pregnant?"

Then look at the skin under the magnifying lamp before you touch it. PSI's practical guidance expects exactly this: a demonstration that the test taker would inspect the treatment area for abrasions or contraindications that would prevent service.

Hair Growth and Timing

Effective waxing needs hair long enough for the wax to grip — commonly around a quarter of an inch (about 6 mm), roughly two to three weeks of regrowth. Shorter hair is not gripped and the client leaves unhappy; considerably longer hair is more painful and more likely to break rather than epilate.

Clients who shave between appointments disrupt the growth cycle synchrony that makes regular waxing progressively easier, because shaving cuts the shaft rather than removing the hair from the follicle.

Aftercare Instructions That Prevent Complications

Give these verbally and in writing:

• Avoid heat for 24–48 hours: no sun, sunbeds, saunas, steam rooms, hot baths or hot yoga.
• Avoid exfoliation, retinoids and acids on the area for 24–48 hours.
• Avoid heavy makeup or occlusive product over a freshly waxed brow.
• Avoid swimming pools and hot tubs for 24 hours; follicles are open.
• Wear loose clothing over body waxing sites.
• Begin gentle exfoliation after 48 hours to reduce ingrown hairs.
• Apply broad-spectrum SPF to any exposed waxed area.
• Call if redness, swelling or pustules persist beyond 48 hours.

Folliculitis — small pustules around follicles — and ingrown hairs are the two most common post-wax complaints, and both are largely prevented by aftercare compliance.

Tennessee's Boundaries on Hair Removal

Three provisions define what an aesthetician may do:

1. Rule 0440-02-.01(1)(d)(2) defines aesthetics to include the removal of superfluous hair by all customary means not including electrolysis. Electrolysis is outside the aesthetician scope.
2. Rule 0440-02-.16(6) prohibits the use of high frequency electric current in the removal of superfluous hair.
3. Rule 0440-02-.07(2)(m) requires the shop to have a wax depilatory heater pot with the manufacturer's intended commercial use statement — a consumer warmer will not do.

Laser and intense pulsed light hair removal are not named in the aesthetics definition and sit outside the ordinary aesthetician scope; where they are performed at all, it is under medical direction and delegation, with the physician holding responsibility for the medical decision.