What is a loupe primarily used for?

The loupe is primarily used to magnify small details, which is essential in various esthetic procedures. This magnification allows estheticians to closely inspect the skin for conditions such as fine lines, pores, and other imperfections that may not be visible to the naked eye. This tool enhances the precision of treatments by helping professionals better understand the client's skin type and condition, enabling them to recommend appropriate products and treatments.

While illuminating dark areas is important for visibility, the primary function of a loupe is not related to providing light but rather to enhance clarity and detail in what the esthetician is observing. Similarly, measuring skin temperature or providing first aid are functions associated with other tools or practices that are not relevant to the specific purpose of a loupe.