
Sunscreens are considered indispensable for preventing skin photoaging and skin cancer. For instance, the Canadian Dermatology Association and the North American Academy of Dermatology strongly recommend the use of sunscreens. The goal of sunscreen is to block UV radiation. The wavelength of UV light is shorter than that of visible light. The shorter the wavelength, the higher the likelihood of biological damage. Learn more about efficacy and safety of the most common sunscreen types in the podcast.