A patch test to determine sensitivity is recommended before what temporary hair removal service?

A patch test to determine sensitivity is recommended before what temporary hair removal service?

• A. Depilatory
• B. Waxing
• C. Threading
• D. Laser hair removal

Answer: (A)

Depilatories use strong chemical ingredients that dissolve hair by breaking down its keratin, so skin can react irritatively or develop an allergic reaction in some people. A patch test screens for these sensitivities by applying a small amount of the depilatory to a discreet skin spot and waiting 24 to 48 hours to see if redness, itching, or swelling occurs. If no reaction appears, it’s generally safe to proceed; if there is a reaction, the product should not be used. This precaution is particularly important for chemical depilatories because the exposure is chemical and lasts on the skin for a period, unlike some other temporary methods.

Depilatories use strong chemical ingredients that dissolve hair by breaking down its keratin, so skin can react irritatively or develop an allergic reaction in some people. A patch test screens for these sensitivities by applying a small amount of the depilatory to a discreet skin spot and waiting 24 to 48 hours to see if redness, itching, or swelling occurs. If no reaction appears, it’s generally safe to proceed; if there is a reaction, the product should not be used. This precaution is particularly important for chemical depilatories because the exposure is chemical and lasts on the skin for a period, unlike some other temporary methods.