California Cosmetology Practice Exam

What is the primary ingredient in most exfoliating scrubs?

1. Salicylic acid

2. Glycolic acid

3. Physical granules or beads

4. Ceramides

The correct answer is: Physical granules or beads

The primary ingredient in most exfoliating scrubs is typically physical granules or beads. These granules provide a mechanical means of exfoliation, physically abrading and removing dead skin cells from the surface of the skin. The texture and size of these particles can vary widely, and they are included in various formulations to deliver a scrubbing action that leaves the skin feeling smoother and refreshed after use. While salicylic acid and glycolic acid are effective chemical exfoliants often found in different types of skincare products, they do not serve as the main component of traditional scrubs. Salicylic acid is a beta hydroxy acid that helps to dissolve sebum and clear pores, making it popular in acne treatments. Glycolic acid, on the other hand, is an alpha hydroxy acid that helps to slough off dead skin cells more chemically. Both can have exfoliating properties, but they are not the primary ingredient in most physical exfoliating scrubs. Ceramides are lipids that help to maintain the skin barrier and retain moisture, but they do not play a role in exfoliation. Thus, the inclusion of physical granules or beads in exfoliating scrubs is the main factor that distinguishes these products from others aimed at chemical exfoliation