| 摘要 |
<p>Skin treating composition on the basis of compatible carrier and additional compositions with a content of a defined tetrahydro-1,3-thiazine-2,4-dion derivatives as active ingredients for thickening the epidermis. The skin treating compositions are applied 1-2 times daily onto the skin for about 3 to 4 weeks. Due to the thickening of the epidermis they cause a reinforcmenet of the skin, in particular against sun rays, cold and the contact with noxious environmental substances of all kinds. Moreover, the skin treating compositions are suitable for a proplylactic fighting of the so-called old age skin. An object of the invention are novel tetrahydro-1,3-thiazine-2,4-dion derivative which are active in the aforementioned manner having the formula <IMAGE> wherein R denotes H, alkyl, aryl, arylalkyl has substituted arylalkyl or substituted aryl in the aryl portion, Ra=H is aryl or substituted aryl, Rb=H, denotes aryl or substituted aryl and Rc-H, represents alkyl or aryl, provided that Ra, Rb and Rconly simultaneously denote H when R denotes a substituted arylalkyl in the aryl portion and R denotes H, but only if Ra=HRb=aryl and Rc constitute=H.</p> |
