Abstract: A composition is described which comprises an ingredient which is adversely affected by the presence of TiO2 and/or ZnO, and TiO2 and/or ZnO which has been doped with another element and/or reduced ZnO.

Abstract: A UV sunscreening composition suitable for cosmetic or topical pharmaceutical use which comprises an amount of one or more organic components which are photosensitive and/or which are degraded and/or in which degradation is induced by another ingredient of the composition, and an amount of TiO2 and/or ZnO which has been doped with another element and/or reduced zinc oxide, this composition having a rate of loss of UV absorption at least 5% less than that of a composition having the same formulation except that it does not contain the said TiO2 and/or ZnO which has been doped with another element or the said reduced zinc oxide.

Abstract: A UV screening composition comprising novel particles which are capable of absorbing UV light so that electrons and positively charged holes are formed within the particles is disclosed. These particles comprise a host lattice incorporating a second component to provide luminescence trap sites and/or killer sites, said second component being niobium, vanadium, antimony, tantalum, strontium, calcium, magnesium, barium, molybdenum or silicon.

Abstract: A UV screening composition comprising particles which are capable of absorbing UV light so that electrons and positively charged holes are formed within the particles, characterised in that the particles are adapted to minimise migration to the surface of the particles of the electrons and/or the positively charged holes when said particles are exposed to UV light in an aqueous environment.

Abstract: A UV screening composition comprises particles which are capable of absorbing UV light so that electrons and positively charged holes are formed within the particles. The particles are adapted to minimize migration to the surface of the particles of the electrons and/or the positively charged holes when the particles are exposed to UV light in an aqueous environment.