Compositions for efficient release of active ingredients
AssigneeThe Procter & Gamble Company
InventorsScott Edward Osborne, George Endel Deckner, Thomas James Klofta, Victor Nicholas Vega
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Abstract
The present invention relates to a novel composition for efficiently releasing hydrophilic or water-soluble skin care actives from an oleaginous composition. The substantially oleaginous composition of the present invention comprises: (1) at least one skin care active; (2) a release agent having an HLB of at least about 3; and (3) a hydrophobic barrier protectant. The novel release composition may be topically applied to skin using a dispensing means such as an absorbent article, a wipe, a bandage, a pad, a canister, a stick, an aerosol dispenser, a sprayer, and the like.
Claims20
A release composition comprising:
- (1) from about 10−4% to about 20%, by weight of the release composition, of at least one skin care active, said skin care active comprising chitosan;
- (2) from about 0.1% to about 60%, by weight of the release composition, of a release agent;
- and
- (3) from about 0.1% to about 95%, by weight of the release composition, of a barrier protectant;
- wherein the release composition is semi-solid or solid at 20° C. and at least partially transferable to a target skin surface.
An article, comprising:
- a. a dispensing means;
- and
- b. a release composition applied to at least a portion of the dispensing means, the release composition comprising:
- (1) from about 10−4% to about 20%, by weight of the release composition, of at least one skin care active, said skin care active comprising chitosan;
- (2) from about 0.1% to about 60%, by weight of the release composition, of a release agent;
- and
- (3) from about 0.1% to about 95%, by weight of the release composition, of a barrier protectant;
- wherein the release composition is semi-solid or solid at 20° C. and at least partially transferable to a wearer's skin.
A method for effectively delivering one or more skin care actives to skin, comprising:
- (a) applying to the skin an article comprising a dispensing means and a release composition disposed on at least a portion of the dispensing means;
- (b) transferring at least a portion of the release composition to the skin;
- (c) exposing the release composition to moisture;
- and
- (d) releasing one or more skin care active ingredients from the release composition;
- wherein the release composition is semi-solid or solid at 20° C. and comprises:
- (1) from about 10−4% to about 20%, by weight of the release composition, of at least one skin care active, said skin care active comprising chitosan;
- (2) from about 0.1% to about 60%, by weight of the release composition, of a release agent;
- and
- (3) from about 0.1% to about 95%, by weight of the release composition, of a barrier protectant.
Dependencies are inferred from the claim text.