Novel Skin Remodeling Strategy
AssigneeELC Management LLC
InventorsIlse Sente, Hugo A.L. CORSTJENS, Lieve DECLERCQ
Life of this patent
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Abstract
The present invention relates to a method for identifying materials having an efficacy for improving collagen turnover in the skin. The invention also concerns a composition containing a combination of a collagen-degrading active and a collagen synthesis-stimulating active for enhancing skin remodeling.
Claims20
A method for identifying a material having an efficacy for enhancing the activity of a collagen promoting active, comprising the steps of:
- (a) incubating human dermal fibroblasts (HDFs) in the presence or absence of a test material;
- (b) thereafter, removing the test material and incubating the HDFs in the presence of a collagen-promoting active for a time sufficient to stimulate collagen release by HDFs;
- and
- (c) measuring an amount of collagen released by HDFs treated with the test material and with the collagen promoting active and comparing that amount with an amount of collagen released by HDFs treated with the collagen-promoting active in the absence of the test material.
A method for identifying a material having an efficacy for enhancing the activity of a collagen synthesis-promoting active, comprising the steps of:
- (a) incubating human dermal fibroblasts (HDFs) in the presence of a collagen synthesis- promoting active or in the presence of a combination of a collagen synthesis-promoting active with a test material for a time sufficient to stimulate collagen release by the HDFs;
- and
- (b) measuring an amount of collagen released by HDFs treated with both the test material and the collagen synthesis-promoting active and comparing that amount with an amount of collagen released by HDFs treated with the collagen synthesis-promoting active in the absence of the treatment with the test material.
A method of enhancing collagen turnover in the skin, comprising the steps of:
- (a) applying to the skin in need of enhanced collagen turnover a first composition comprising a first active having an efficacy for degrading collagen in connective tissue in the skin and a cosmetically acceptable vehicle;
- and allowing the first composition to remain in contact with the skin for a time sufficient to stimulate collagen phagocytosis by fibroblasts in the connective tissue;
- (b) applying to the skin a second composition comprising a second active having an efficacy for promoting collagen synthesis and a cosmetically acceptable vehicle;
- and allowing the second composition to remain in contact with the skin for a time sufficient to promote collagen release by fibroblasts in the connective tissue in the skin;
- wherein steps (a) and (b) occur sequentially in any order;
- and wherein the first active improves the activity of the second active when both the first composition and the second composition are applied to the skin.
A method of enhancing collagen turnover in the skin, comprising the steps of:
- (a) applying to the skin in need of enhanced collagen turnover a composition comprising a first active having an efficacy for degrading collagen by stimulating collagen phagocytosis by fibroblasts in connective tissue in the skin and a second active having an efficacy for promoting collagen synthesis by fibroblasts in the connective tissue and a cosmetically acceptable vehicle, wherein the first active improves the efficacy of the second active when the composition is applied to the skin;
- and
- (b) permitting the composition to remain in contact with the skin for a time sufficient to enhance collagen turnover in the skin.
A skin treatment kit comprising:
- a first composition containing a first active having an efficacy for degrading collagen by stimulating collagen phagocytosis by fibroblasts in connective tissue in the skin and a cosmetically acceptable vehicle;
- a second composition containing a second active having an efficacy for promoting collagen synthesis by fibroblasts in connective tissue in the skin and a cosmetically acceptable vehicle, wherein the first active improves the efficacy of the second active when both the first composition and the second composition are applied to the skin;
- and
- instructions for consumers on the use of the first and second compositions sequentially in any order to achieve a degree of collagen release which exceeds a degree of collagen release achievable by treatment with the second composition in the absence of treatment with the first composition.
A skin treatment product comprising a composition comprising a first active having an efficacy for degrading collagen by stimulating collagen phagocytosis by fibroblasts in connective tissue in the skin and a second active having an efficacy for promoting collagen synthesis by fibroblasts in the connective tissue and a cosmetically acceptable vehicle, wherein the first active and the second active are present in the composition in amounts effective for the first active to improve the efficacy of the second active when the composition is applied to the skin.
A method for cosmetically improving human skin through a treatment regime for enhancing collagen turnover in the skin comprising:
- providing a first composition containing a first active having an efficacy for degrading collagen in connective tissue in the skin and a cosmetically acceptable vehicle, the first composition functioning to stimulate collagen phagocytosis by fibroblasts in the connective tissue;
- providing a second composition containing a second active having an efficacy for promoting collagen synthesis in connective tissue in the skin and a cosmetically acceptable vehicle, the second composition functioning to promote collagen release by fibroblasts in the connective tissue;
- instructing consumers on the use of the first and second compositions sequentially to achieve a level of collagen turnover in the skin which exceeds a level of collagen turnover achievable by treatment with the second composition in the absence of treatment with the first composition;
- applying the first composition to the skin;
- and
- applying the second composition to the skin;
- wherein the first composition and the second composition may be applied to the skin in any order;
- and wherein the first active improves the efficacy of the second active when both the first composition and the second composition are applied to the skin.
A method for cosmetically improving human skin through a treatment for enhancing collagen turnover in the skin, comprising:
- (a) providing a composition comprising a first active having an efficacy for degrading collagen in connective tissue in the skin and a second active having an efficacy for promoting collagen synthesis by fibroblasts in the connective tissue and a cosmetically acceptable vehicle;
- wherein the first active improves the efficacy of the second active when the composition is applied to the skin;
- and
- (b) applying the composition to the skin and retaining the composition in contact with the skin for a time sufficient for the first active to stimulate collagen phagocytosis by the fibroblasts in the connective tissue and for the second active to promote collagen release by the fibroblasts in the connective tissue.
Dependencies are inferred from the claim text.