What is a key benefit of using aluminum oxide crystals for microdermabrasion?

Using aluminum oxide crystals for microdermabrasion is advantageous because they are known to be less irritating to the skin compared to some other abrasives. This makes them suitable for a wider range of skin types, including sensitive skin. The chemical composition of aluminum oxide allows for effective exfoliation without causing excessive trauma to the skin, minimizing the risk of redness and inflammation. This characteristic is particularly beneficial for estheticians seeking to achieve results while ensuring client comfort and safety.

Other options, while they highlight different aspects of microdermabrasion, do not emphasize the crucial relationship between the type of crystal used and skin irritation. Factors like cost, sensation, or perceived drawbacks do not directly pertain to the key benefit of reducing irritation during treatment, which is critical for client satisfaction and overall treatment efficacy.