Utah Master Esthetician Practice Exam

What effect does yellow LED light have on the skin?

1. Reduces redness and hyperpigmentation

2. Rejuvenates and increases collagen production

3. Reduces inflammation and improves lymphatic flow

4. Calms and soothes sensitive skin

The correct answer is: Reduces inflammation and improves lymphatic flow

Yellow LED light is known for its ability to reduce inflammation and improve lymphatic flow in the skin. This form of light therapy works by penetrating the skin at a certain wavelength that promotes circulation and enhances lymphatic drainage, leading to a decrease in puffiness and inflammation. People with sensitive skin, rosacea, or conditions that cause redness can greatly benefit from yellow LED treatments, as it helps in soothing irritations and improving skin texture by eliminating toxins and promoting healing. In contrast, other options relate to different light wavelengths. Red LED light, for instance, is more commonly associated with rejuvenating the skin and increasing collagen production, while calming and soothing effects are often attributed to green light. Thus, while yellow LED light is effective in the context of inflammation and lymphatic flow, the other options pertain to properties of different light colors or effects not typically associated with yellow light.