Which items are subject to possible cross-contamination?

The correct answer focuses on the potential for cross-contamination with oils, moisturizers, and creams. These products are typically dispensed from a larger container and can be contaminated by the application tools or fingers during use. If not stored or handled properly, they can easily become a medium for bacteria or other pathogens, leading to cross-contamination between clients.

On the other hand, disposable gloves are designed for single-use and are meant to prevent any contamination during treatments. Comedone extractors, while they can be reused, are often properly sanitized between clients to minimize contamination risks. Metal implements are generally made of non-porous materials that can be sterilized effectively, reducing their risk of harboring contaminants. Thus, oils, moisturizers, and creams pose a unique challenge due to their nature and application methods, making them more susceptible to cross-contamination.