Topical skincare compositions comprising centella asiatica selected triterpenes

Abstract

A topical skincare composition including a Centella asiatica extract including one or more triterpenes, wherein at least one of the one or more triterpenes is madecassic acid, an Avena (oat) extract, a ceramide and a dermatologically acceptable carrier. A method of treating symptoms of itch, redness, flaking, dryness, and/or roughness of the skin, scalp, and/or mucous membrane including the step of applying the topical skincare composition to at least a portion of a user's skin, scalp, and/or mucous membrane in need thereof.

What is claimed is: 
     
         1 . A topical skincare composition comprising:
 a  Centella asiatica  extract comprising one or more triterpenes, wherein at least one of the one or more triterpenes is madecassic acid;   an  Avena  (oat) extract;   a ceramide; and   a dermatologically acceptable carrier.   
     
     
         2 . The topical skincare composition according to  claim 1 , wherein the composition comprises at least 0.000001% by weight of the composition, of  Centella asiatica  extract. 
     
     
         3 . The topical skincare composition according to  claim 1 , wherein the  Centella asiatica  extract comprises two or more triterpenes selected from the group consisting of asiaticoside, asiatic acid, madecassoside, and mixtures thereof. 
     
     
         4 . The topical skincare composition according to  claim 1 , wherein the  Centella asiatica  extract comprises from about 20% to about 60% by weight of the  Centella asiatica  extract, of asiaticoside and from about 40% to about 80% by weight of the  Centella asiatica  extract, of a mixture of asiatic acid and madecassic acid. 
     
     
         5 . The topical skincare composition according to  claim 1 , wherein the composition comprises at least 0.00001% by weight of the composition, of  Avena  (oat) extract. 
     
     
         6 . The topical skincare composition according to  claim 1 , wherein the  Avena  (oat) extract comprises an  Avena sativa  (oat) extract. 
     
     
         7 . The topical skincare composition according to  claim 1 , wherein the  Avena  (oat) extract is selected from the group consisting of  Avena sativa  (oat) kernel extract,  Avena sativa  (oat) oil, colloidal oatmeal, and mixtures thereof. 
     
     
         8 . The topical skincare composition according to  claim 1 , wherein the composition comprises at least 0.0001% by weight of the composition, of ceramide. 
     
     
         9 . The topical skincare composition according to  claim 1 , wherein the topical skincare composition is substantially free of a steroid. 
     
     
         10 . The topical skincare composition according to  claim 1 , wherein the dermatologically acceptable carrier comprises water. 
     
     
         11 . The topical skincare composition according to  claim 1 , wherein the dermatologically acceptable carrier is an oil-in-water emulsion. 
     
     
         12 . The topical skincare composition according to  claim 1 , wherein the composition further comprises at least 0.01% by weight of the composition, of a lipid bilayer structurant. 
     
     
         13 . The topical skincare composition according to  claim 1 , wherein the composition further comprises at least 0.0001% by weight of the composition, of a preservative. 
     
     
         14 . The topical skincare composition according to  claim 1 , wherein the composition has a viscosity of from about 30,000 cP to about 300,000 cP, when measured according to the Viscosity Test Method described herein. 
     
     
         15 . A method of treating symptoms of itch, redness, flaking, dryness, and/or roughness of the skin, scalp, and/or mucous membrane, the method comprising the steps of:
 a. providing a topical skincare composition comprising a  Centella asiatica  extract comprising one or more triterpenes, wherein at least one of the one or more triterpenes is madecassic acid, an  Avena  (oat) extract, a ceramide, and a dermatologically acceptable carrier; and   b. applying a safe and effective amount of the topical skincare composition to at least a portion of a user's skin, scalp, and/or mucous membrane in need thereof.   
     
     
         16 . The method of treating symptoms of itch, redness, flaking, dryness, and/or roughness of the skin, scalp, and/or mucous membrane according to  claim 15 , wherein the symptoms of itch, redness, flaking, dryness, and/or roughness are associated with at least one skin, scalp, and/or mucous membrane condition selected from the group consisting of eczematous dermatitis, contact dermatitis, atopic dermatitis, and psoriasis. 
     
     
         17 . The method of treating symptoms of itch, redness, flaking, dryness, and/or roughness of the skin, scalp, and/or mucous membrane according to  claim 15 , wherein the step of applying the topical skincare composition to the portion of the user's skin, scalp, and/or mucous membrane in need thereof comprises applying from about 0.01 g/m 2  to about 20 g/m 2  of the topical skincare composition. 
     
     
         18 . The method of treating symptoms of itch, redness, flaking, dryness, and/or roughness of the skin, scalp, and/or mucous membrane according to  claim 15 , wherein the step of applying the topical skincare composition to the portion of the user's skin, scalp, and/or mucous membrane in need thereof is repeated at least once within a twenty-four-hour time period repeated for 4 consecutive days. 
     
     
         19 . The method of treating symptoms of itch, redness, flaking, dryness, and/or roughness of the skin, scalp, and/or mucous membrane according to  claim 15 , wherein the topical skincare composition is not removed from the portion of the user's skin, scalp, and/or mucous membrane in need thereof for at least five minutes after the step of applying a safe and effective amount of the topical skincare composition to the portion of the user's skin, scalp, and/or mucous membrane in need thereof. 
     
     
         20 . A topical skincare composition capable of alleviating symptoms associated with eczematous dermatitis, contact dermatitis, atopic dermatitis, and/or psoriasis, the topical skincare composition comprising a  Centella asiatica  extract comprising two or more triterpenes,  Avena sativa  (oat) kernel extract,  Avena sativa  (oat) oil, a ceramide, batyl alcohol, caprylyl glycol, 1,2-hexanediol, and a dermatologically acceptable carrier.