| abstract |
The invention relates to the use of chromone derivatives of the formula I or their physiologically acceptable salts or a preparation containing at least one compound of the formula I, in which R 1 , R 2 and R 3 are -H, -OH, -OA, -A, -OCOA, R 1 and R 2 taken together may be -methylenedioxy or -ethylenedioxy, R 1 , R 2 and R 3 are identical or different with the condition that they can not all be -H together, R 4 is -H, -A, -COOH, -COOA, -COA, -CONH 2 , -CONH 2 A, X is -OH, -CH 2 -R 4 , -NH-R 4 , A is alkyl or R-substituted alkyl radical, phenyl or R-substituted phenyl radical for the prophylaxis, improvement of the general skin condition and / or treatment of skin diseases, in particular hyperpigmentation. |