What type of supplies are prohibited in salons?

In salons, certain types of supplies are prohibited due to health and safety regulations. Powder puffs and stop tic pencils can pose hygienic risks as they are difficult to sterilize and can harbor bacteria when used on multiple clients. These items are not single-use and can lead to cross-contamination between clients, which is a serious concern in a salon setting where cleanliness and client safety are paramount.

On the other hand, supplies like liquid nail polish remover, cuticle oil, and emery boards are generally permitted as they can be used in a hygienic manner. Liquid nail polish remover can be applied using disposable materials, cuticle oil can be dispensed in ways that minimize contamination, and emery boards can be single-use or properly sanitized between uses. Thus, the prohibition of powder puffs and stop tic pencils makes sense within the context of maintaining a safe and sanitized salon environment.