A multiple emulsion excipient for cosmetic actives

A - Human Necessities – 61 – K

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Details

A61K 8/06 (2006.01) A61Q 17/04 (2006.01) A61Q 19/00 (2006.01)

Patent

CA 2576031

The present invention relates to a P/O/W-type multiple emulsion, constituted by two phases: an aqueous phase composed of an oil-in-water emulsion and an oil phase composed of a polvol-in-oil emulsion, wherein said oil phase comprises at least one lipophilic emulsifying agent, at least one lipophilic co-emulsifying agent and at least one electrolyte. This multiple emulsion is intended to be used as an excipient for actives, since it protects them from oxidation and hydrolysis, promotes delay or control of the release thereof and reduces the possible irritation caused by said actives.

La présente invention se réfère D une émulsion multiple du type P/O/W constitué par deux phases : une phase aqueuse composée d'une émulsion huile dans l'eau et une phase huileuse composée d'une émulsion polyol dans l'huile, dans laquelle ladite phase huileuse comprend au moins un agent d'émulsion lipophylique, au moins un agent de co-émulsion lipophylique et au moins une électrolyte. L'émulsion multiple est destinée D être utilisée comme un excipient pour des composés actifs étant donné qu'il les protége de l'oxydation et de l'hydrolyse, favorise le retard ou le contrôle de leur libération et réduit l'irritation possible provoquée par lesdits composants actifs.

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