Cosmetic composition, a pharmaceutical composition and a process for preparing said compositions

A pharmaceutical non-emulsion composition that comprises a base selected from an oily-alcoholic medium and an oily-waxy medium, characterized by further comprising:

• triglyceryl-4 isostearate or an isomer thereof;
• dimethicone copolyol or a derivative thereof;
• at least one lipophilic substance having low or middle polarity that, at temperatures lower than 75° C., is in a liquid form;
• and
• at least one highly polar substance that forms intermolecular interactions by means of hydrogen bridges.

A process for preparing a cosmetic composition or a pharmaceutical composition, characterized by comprising the following steps:

• a) in a first container, incorporating a lipophilic substance having low or middle polarity, triglyceryl-4 isostearate or an isomer thereof and dimethicone copoliol or a derivative thereof, under stirring of 500 to 2,000 rpm;
• b) keeping the stirring for 5 to 30 minutes until complete limpidity of this phase is achieved;
• c) adding a highly polar substance, totally solubilized;
• and
• d) keeping the stirring for about 15 minutes.