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US 2013/0096203 A1Published application
Low toxicity topical active agent delivery system
AssigneeYoung Pharmaceuticals Inc.
InventorJohn E. Kulesza
Life of this patent
Estimating the term…
Abstract
An active agent delivery composition is provided that allows topical delivery of active agents including vitamin A and its derivatives. A polyhalogenic vehicle such as methoxyonafluorobutane or ethoxyonafluorobutane serves as a coupler for an active agent and a silicone carrier so as to allow solubilization of active agents not normally miscible in silicones and providing a moisture maintaining composition.
Claims19
1-21. (canceled)
An active agent topical delivery composition comprising:
- an active agent selected from the group consisting of vitamin A or its derivatives, hydroxy acids, and benzoyl peroxide;
- a volatile linear organopolysiloxane carrier;
- an organic polyhalogenic vehicle, said vehicle present at from 5 percent to 40 percent by weight;
- and
- organic hydrocarbon solvent at less than 5% by weight;
- said composition substantially free of water and ethanol, and said active agent fully solubilized in said composition.
3 more elements
(canceled)
A skin care composition comprising:
- an active agent at a therapeutically effective concentration;
- a volatile linear organopolysiloxane carrier of 2 to 6 silicon atoms;
- an organic polyhalogenic vehicle having a boiling point less than 78 degrees Celsius;
- and
- organic hydrocarbon solvent at 0-5 percent by weight;
- said active agent insoluble in said carrier alone and said vehicle alone at said concentration;
- said composition substantially free of water.
4 more elements
Dependencies are inferred from the claim text.