Before using a depilatory product, a patch test is recommended to determine...

Before using a depilatory product, a patch test is recommended to determine...

• A. Hair growth rate
• B. Sensitivity or potential allergy
• C. Skin moisture
• D. Hair color

Answer: (B)

A patch test checks whether the skin will tolerate the depilatory's ingredients without reacting. Because these products contain active chemicals that break down hair, they can irritate skin or trigger an allergic reaction in some people. Applying a small amount to a discreet area and leaving it on for 24 to 48 hours lets you observe for redness, itching, burning, or swelling before using the product more broadly. If any reaction occurs, avoid using it on larger areas. The test focuses on sensitivity or potential allergy, not on hair growth rate, skin moisture, or hair color, which do not predict safety.

A patch test checks whether the skin will tolerate the depilatory's ingredients without reacting. Because these products contain active chemicals that break down hair, they can irritate skin or trigger an allergic reaction in some people. Applying a small amount to a discreet area and leaving it on for 24 to 48 hours lets you observe for redness, itching, burning, or swelling before using the product more broadly. If any reaction occurs, avoid using it on larger areas. The test focuses on sensitivity or potential allergy, not on hair growth rate, skin moisture, or hair color, which do not predict safety.