Abstract: A well-dispersed thixotropic sunscreen composition having no greasy or powdery after effects is provided, along with a method for their production. The composition comprises an oleaginous liquid base, a thickening agent, and a coated particulate sunscreen material. The sunscreen agents are coated with, for example, dimethicone, which enables van der Waals forces to provide hydrogen bonding, keeping the sunscreen agents in suspension and without appreciable reaggregation.

Abstract: A device, preferably in the form of a skin patch, is disclosed for usage in the delivery of a contactant to human skin for the purpose of treating medical conditions responsive to contact immunotherapy, without the presence of medication to alleviate contact dermatitis induced by the contactant. The skin patch specifically induces a cell-mediated contact dermatitis in the treatment of skin disorders. Its anticipated use pertains to treatment of, for example, human papilloma virus infections, or warts. In a first embodiment, a pressure activated single chambered skin patch is topically applied and used for controlled release of contactant to human skin. In a second embodiment, a pressure activated two-chambered skin patch is topically applied and used for controlled release of a contactant to human skin. Alternatively, a single chambered skin patch is topically applied and hydrated by the contacted skin for release of contactant.

Abstract: A skin patch is disclosed for usage in the delivery of a contactant to human skin for the purpose of treating medical conditions responsive to contact immunotherapy. The skin patch specifically induces a cell-mediated contact dermatitis in the treatment of skin disorders. Its anticipated use pertains to treatment of human papilloma virus infections, or warts. In a first embodiment, a pressure activated single chambered skin patch is topically applied and used for controlled release of contactant to human skin. In a second embodiment, a pressure activated two chambered skin patch is topically applied and used for controlled release of a contactant to human skin. Alternatively, a single chambered skin patch is topically applied and hydrated by the contacted skin for release of contactant. In addition, a flared shroud region can be provided between the containment portion of the shroud and a surrounding adhesive flange to enlarge the area treated upon release of the contactant.