Stable personal care compositions containing a retinoid
AssigneeThe Procter & Gamble Company
InventorsBradley Steven Resch, Joseph Michael Zukowski, Margaret Ann O'Donoghue, Shane Christian Smith
Life of this patent
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Abstract
The present invention relates to topical skin care compositions having improved stability containing a retinoid and a non-paraben preservative and being substantially free of paraben preservatives. Preferred non-paraben preservatives include phenols, phenol salts, carboxylic acids, carboxylic acid salts, quaternium ammonium compounds, halogens, halogen salts, alcohols, inorganic salts, heterocyclic compounds, emulsifying preservatives, and mixtures thereof. The present invention also relates to methods of using such compositions to regulate the condition of skin and/or hair.
Claims26
A topical personal care composition having improved stability of a retinoid, comprising:
- a) a retinoid;
- b) a preservative selected from the group consisting of phenols, phenol salts, quaternium ammonium compounds, halogens, halogen salts, alcohols, inorganic salts, zinc pyrithione, emulsifying preservatives, and mixtures thereof;
- and
- c) a dermatologically acceptable carrier;
- d) wherein the composition is substantially free of parahydroxybenzoic acid esters.
A topical personal care composition having improved stability of a retinoid, comprising:
- a) a retinoid selected from the group consisting of retinyl esters, retinyl aldehydes, and mixtures thereof;
- b) a preservative;
- and
- c) a dermatologically acceptable carrier;
- d) wherein the composition is substantially free of parahydroxybenzoic acid esters;
- and
- e) wherein the composition is substantially free of formaldehyde and formaldehyde donating compounds.
A topical personal care composition having improved stability of a retinoid, comprising:
- a) from about 0.0001% to about 2% of a retinoid;
- b) an anti-oxidant;
- c) from about 0.1% to about 0.35% of a preservative selected from the group consisting of carboxylic acid, carboxylic acid salts, and mixtures thereof;
- and
- d) a dermatologically acceptable carrier;
- e) wherein the composition is substantially free of parahydroxybenzoic acid esters;
- and
- f) wherein the composition is substantially free of formaldehyde and formaldehyde donating compounds.
Dependencies are inferred from the claim text.