A topical composition separately containing a hydrophilic carrier and a solid which are intended to be mixed immediately before use, the solid being powdered ascorbic acid and the carrier containing an aqueous medium and at least one hydrophilic gelling agent, the carrier being capable of withstanding...http://www.google.fr/patents/US6322798?utm_source=gb-gplus-shareBrevet US6322798 - Cosmetic and/or dermatological composition with a hydrophilic carrier and vitamin C which can be mixed immediately before use
Cosmetic and/or dermatological composition with a hydrophilic carrier and ...