A composition suitable for providing protection against ultraviolet radiationcontaining one or more active ultravi-oletradiation absorber through which ultraviolet B radiation is permitted to enterthe skin in an amount sufficient for the body toproduce a healthful and disease-opposing quantity of vitamin D3 and chemicalprecursors thereof. The composition is particularlyused in sunscreens promoting on the one hand vitamin D3 production, on theother hand protecting the skin against harmful ultra-violetradiation.
