Aqueous composition comprises: vesicles formed from at least one amphiphilic, membrane-forming lipid of the group of esters or diacylglycerides polyacylglycerides with long-chain unsaturated fatty acids and at least one membrane-stabilizing long-chain unsaturated fatty acid monoester； an aqueous medium comprising both the vesicle and carrier vehicle of the same composition； at least one active substance which can be hydrophilic, amphiphilic or lipophilic.
