Estheticians are permitted to use products designed for what purpose?

Estheticians are specifically trained and authorized to use products designed for skin care. This designation encompasses various techniques and treatments that focus on improving the appearance and health of the skin. These can include facials, exfoliation, and various types of skin treatments that fall under the category of aesthetic services. The primary role of an esthetician revolves around the skin, so they utilize products that are formulated to cleanse, hydrate, and treat skin concerns.

The other options, while relevant in the broader field of cosmetology, do not pertain to the specific scope of practice for estheticians. Hair coloring involves services provided by cosmetologists or hair stylists, cleaning products are used in maintaining hygiene and salon environments but are not applicable to the esthetic practice itself, and makeup application is typically associated with makeup artists, which may overlap with estheticians but is not their primary focus. Therefore, the correct answer highlighting the scope of an esthetician's work is skin care.