MILD LEAVE-ON SKIN CARE COMPOSITIONS
This invention relates to a composition that is mild to the skin containing a cosmetically acceptable oil; water; a cosmetically acceptable emulsifier having an HLB of from about 1 to about 25; and a preservative comprising an organic acid selected from the group consisting of benzoic acid, p-anisic acid, sorbic acid, lactic acid, acetic acid, formic acid, oxalic acid, tartaric acid, salicylic acid and citric acid; wherein said composition has a pH less than 5 and a buffer capacity of between about 0.001 and about 0.039.
1 . A buffered leave-on skin care composition comprising: a cosmetically acceptable oil; water; a cosmetically acceptable emulsifier having an HLB of from about 1 to about 25; and a preservative comprising an organic acid consisting of benzoic acid; wherein said composition has a pH less than 5, a skin mildness score of greater than about 10 and a buffer capacity of between about 0.001 and about 0.039.
2 . (canceled)
3 . A composition according to claim 1 , wherein the pH is less than about 4.8.
4 . A composition according to claim 1 , wherein the buffer capacity is from 0.001 to about 0.031.
5 . A composition according to claim 4 wherein the buffer capacity is from about 0.001 to about 0.023.
6 . (canceled)
7 . A composition according to claim 1 wherein the eye mildness score of the composition is greater than about 10.
8 . A method of preserving a leave-on skin care composition comprising combining a cosmetically acceptable oil; a preservative comprising an organic acid consisting of benzoic acid; a cosmetically acceptable emulsifier having an HLB of from about 1 to about 25; wherein said composition has a pH less than 5, a skin mildness score of greater than about 10 and a buffer capacity of between about 0.001 and about 0.039.
9 . (canceled)
10 . A composition according to claim 8 , wherein the pH is less than about 4.8.
11 . A cosmetically acceptable wipe comprising a non-woven substrate and a leave-on skin care composition comprising a cosmetically acceptable oil; water; a preservative comprising an organic acid consisting of benzoic acid; a cosmetically acceptable emulsifier having an HLB of from about 1 to about 25; wherein said composition has a pH less than 5, a skin mildness score of greater than about 10 and a buffer capacity of between about 0.001 and about 0.039.
12 . A method of providing moisture to mammalian skin comprising applying to said skin a leave-on skin care composition comprising a cosmetically acceptable oil; water; a preservative comprising an organic acid consisting of benzoic acid; a cosmetically acceptable emulsifier having an HLB of from about 1 to about 25; wherein said composition has a pH less than 5, a skin mildness score of greater than about 10 and a buffer capacity of between about 0.001 and about 0.039.
13 . (canceled)
14 . A wipe according to claim 11 , wherein the pH is less than about 4.8.
15 . A wipe according to claim 11 , wherein the buffer capacity is from 0.001 to about 0.0031.
16 . A wipe according to claim 11 wherein the buffer capacity is from about 0.001 to about 0.023.
17 . A method according to claim 12 , wherein the pH is less than about 4.8.
18 . A method according to claim 12 , wherein the buffer capacity is from 0.001 to about 0.0031.
19 . A method according to claim 12 wherein the buffer capacity is from about 0.001 to about 0.023.