| abstract |
The invention relates to the use of the compounds of formula (I), wherein R represents CN, OH, CH3 or H2O, for building up and improving the resistance of the skin. The compounds are particularly suitable for prophylaxis in cases where a predisposition for chronic skin diseases exists, for the prophylaxis and treatment of allergic skin reactions, for the treatment of acute skin lesions, for example burns and wounds, as well as for skin aging and for the treatment of degenerate cells, such as in canceroses, benign and/or malign tumors. |