| abstract |
The present invention relates to a delivery system having a structure comprising surfactant aggregates, characterized in that it comprises: (a) a system of surfactants selected from the group consisting of nonionic, cationic and zwitterionic surfactants, the surfactant is present in a amount equal to, or greater than its critical concentration of micelles, (b) 10% or more by weight, based on the total weight of the delivery system, of a hydrophilic phase formed of water and / or a water soluble solvent, ( c) from 0.0001 to 5% by weight, based on the total weight of the delivery system, of a compound having the structure of the formula (I) or salts, and / or solvates thereof ("compound 1") wherein at least a proportion of compound 1 is encapsulated within the surfactant aggregates. |