Should You Use Red Light Therapy on Bare Skin?
People commonly use red light devices on bare skin, since clothing and some makeup can sit between the light and the skin. Many also do facial sessions on clean skin for that reason. But the specifics — including whether to apply anything before or after — depend on the device and your own skincare routine, so check the manufacturer's guidance.
A few sensible habits: start with clean skin so nothing's blocking the light, keep the recommended distance, and follow the device's timing. Whether you moisturize before or after is a personal routine choice; some prefer applying skincare afterward. If you use active skincare ingredients or have a skin condition, a dermatologist can advise what fits with light use. As always, we're describing general use, not making claims about results. More in red light therapy at home explained.
This article is general information, not medical advice.