Bimetal complexes useful in the treatment of skin conditions are described.Thebimetal complexes are prepared by reacting a polyfunctional acid, amine oramino acidwith two or more coordination elements chosen from the elements listed inGroups IIIAto VIIIA, Groups IB to IIIB, of periods 4 and 5 and aluminum in Group IIIB,period 3 ofThe Periodic Table of the Elements.