What is a potential effect of using a Woods lamp?

Using a Woods lamp is primarily associated with the identification of skin diseases. This tool emits ultraviolet (UV) light, which causes certain substances in the skin, such as fungi, bacteria, and pigmentation issues, to fluoresce. The distinct patterns of fluorescence can help professionals discern various dermatological conditions, including infections, pigmentation disorders, and other skin irregularities. For instance, a fungal infection may exhibit a characteristic glow under the Woods lamp, while other conditions may show different hues or lack fluorescence altogether. This ability to visually differentiate skin issues makes the Woods lamp a valuable diagnostic tool in the field of esthetics and dermatology.

The other options pertain to effects that are not associated with the use of a Woods lamp. Skin hydration, skin whitening, and improving circulation are outcomes influenced by other treatments and interventions but do not fall within the diagnostic capabilities of a Woods lamp.