Arizona State Board Nail Technology Practice Exam

Which product is not commonly used as an abrasive in exfoliating scrubs?

1. Sugar

2. Salt

3. Purified lanolin

4. Ground coffee

The correct answer is: Purified lanolin

Purified lanolin is not commonly used as an abrasive in exfoliating scrubs due to its primary purpose and properties. Lanolin is a natural, waxy substance derived from sheep's wool and is primarily used for its emollient properties. It works to hydrate and protect the skin rather than exfoliate it. The role of an abrasive in exfoliating scrubs is to physically remove dead skin cells and promote skin renewal, which lanolin does not accomplish. On the other hand, products like sugar, salt, and ground coffee serve as effective abrasive agents. They contain granules that can slough off dead skin, providing a physical exfoliation effect. Sugar is a gentle exfoliant and dissolves in water, making it popular for sensitive skin. Salt offers a coarser texture and is often used in scrubs for areas needing more intense exfoliation. Ground coffee not only acts as an exfoliant but also contains antioxidants, contributing additional benefits to the skin. In summary, the role and characteristics of purified lanolin as an emollient, rather than an abrasive, clearly distinguish it from the other options, which all serve the purpose of promoting exfoliation.