PURPOSE:To provide an UV light-controlling composition excellent in an UV light-preventing effect, not whitening skins when coated, and not deteriorated after use. CONSTITUTION:An UV light-preventing composition contains (A) silicon carbide powder preferably having a crystal type of 2H, 4H or 6H and a particle diameter of 0.01-100mum, especially 0.1-50mum, and (B) an UV light-scattering agent except the silicon carbide powder, preferably fine particulate titanium dioxide or zinc oxide having an average particle diameter of 100-100000nm, or thin flaky zinc oxide having an average particle diameter of 100-1000nm, a thickness of 10-200nm and a platy ratio of >=3. Both the components are compounded in a total amount of 1-99wt.%, preferably 5-50wt.%, based on the composition, and both the components are compounded in an A/B ratio of 1/99 to 99/1, especially 3/7 to 7/3. The component A preferably has a free carbon content of