The invention relates to a colloidal carrier system in the form of a nanocapsule, comprising at least the following components: a liquid lipid core, a continuous shell surrounding the core, containing at least one membrane-forming, natural anionic emulsifier and at least one single-chain, natural non-ionic co-emulsifier selected from the group of diglyceryl-monooleates, diglyceryl-monolinoleates, polyglyceryl-monooleates, polyglyceryl-monolinoleates.