Ethnobotanical assessment of indigenous knowledge of plants used as sunscreen: A comprehensive review

The purpose of sun protective factor is a measure of how much solar energy (UV radiation) is required to produce sunburn on protected skin (i.e., in the presence of sunscreen) relative to the amount of solar energy required to produce sunburn on unprotected skin. The depletion of the ozone layer has increased our risk of sun damage from harmful UV rays. It Helps Maintain an Even Skin Tone: Sunscreen helps prevent discoloration and dark spots from sun damage, helping you maintain a smoother and more even skin tone. SPF is determined by the UV spectroscopy, In vitro SPF, Mansur equation. This review concludes damaging and harmful effects of UV rays, types of UV radiations along with brief information on role of sunscreen and advantages of various herbal remedies as sunscreen.