Which device is commonly used to closely inspect the skin during a facial?

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Close inspection of the skin during a facial relies on bright, focused light combined with magnification to see texture, pore size, pigmentation, dehydration, and any irregularities in detail. A magnifying lamp provides both a strong illumination source and a magnifying lens, enlarging the view so you can assess condition accurately and plan treatments or extractions if indicated.

The other tools serve different purposes: a towel warmer is for warming towels and comfort, a steamer helps open pores and loosen debris but doesn’t enhance visibility, and a rotary brush aids cleansing and exfoliation but doesn’t improve the ability to see fine skin details. So, for closely inspecting the skin, the magnifying lamp is the best choice.