Should You Apply Bug Repellent Or Sunscreen First?

According to World Nomads, insect repellent that contains DEET may decrease the effectiveness of sunscreen, although the CDC reports that there is limited research in that area. The CDC does suggest, however, to apply sunscreen first, and then apply the bug spray after the sunscreen dries. According to the Skin Cancer Foundation, SPF should be used liberally and often, every two hours depending on sun and water exposure, and should always be applied first. Bug spray should be applied after the sunscreen and re-applied every two to six hours as necessary, and should not be applied to the face.

Dr. Marc Sanders, dermatologist at Intermountain Healthcare, agrees. He told Select Health more of the same; namely that "insect repellent can be used with sunscreen; the repellent should be applied after the sunscreen."  Plus, Dr. Jennifer Shu revealed to Select Health that bug spray only needs to be used on the skin that is exposed. Dr. Shu also noted that "it is a good idea to wash off the insect repellent once you return indoors."