Cosmetic products compatible with cutaneous ecology and methods for their use

Abstract

A cosmetic or corporal hygiene composition may comprise 98-100% by weight biodermal constituents including at least two different biodermal constituents, each biodermal constituent being cytocompatible with skin; and 0-2% by weight of at least one non-biodermal constituent that is compatible with skin. This composition may be used in a cosmetic method. The cosmetic method may comprise: (a) starting from the living epidermis as an ecological medium; (b) choosing biodermal constituents that are each cytocompatible and biomimetic with a component of the skin; (c) choosing non-biodermal constituents that are biocompatible with the skin; (d) formulating a composition for topically use, which comprises 98-100% by weight of the biodermal constituents, including at least one component in a major amount and at least one component in a minor amount, and 0-2% by weight of the non-biodermal constituents, so that the composition is stable and exhibits at least one non-systemic topical beneficial activity; and (e) applying the composition on a superficial part of the human body so as to maintain the functional biological equilibria of the living epidermis ecological medium.

What is claimed is:  
     
         1 . A cosmetic or corporal hygiene composition comprising: 
 98-100% by weight biodermal constituents including at least two different biodermal constituents, each biodermal constituent being cytocompatible with skin; and    0-2% by weight of at least one non-biodermal constituent that is compatible with skin.    
     
     
         2 . The composition according to  claim 1 , wherein at least one of the biodermal constituents are biomimetic with a component of skin.  
     
     
         3 . The composition according to  claim 1 , wherein each of said biodermal constituents are biomimetic with a component of skin.  
     
     
         4 . The composition according to  claim 1 , wherein each of said biodermal constituents are contained in said composition in a weight content that is different from the weight content of that constituent in skin.  
     
     
         5 . The composition according to  claim 1 , wherein a major portion of said composition is a constitutive component of skin and a minor portion of said composition is a skin nutrient.  
     
     
         6 . The composition according to  claim 1 , wherein each biodermal constituent is selected from the group consisting of biological, mineral, organic or biochemical species or entities of which the epidermis or the dermis is composed.  
     
     
         7 . The composition according to  claim 1 , wherein at least one of said biodermal constituents is a skin nutrient.  
     
     
         8 . The composition according to  claim 1 , wherein said composition comprises at least one non-biodermal constituent that is cytocompatible with skin.  
     
     
         9 . The composition according to  claim 1 , wherein said composition is in a two-phase form.  
     
     
         10 . The composition according to  claim 9 , wherein said composition is a water-in-oil dispersion.  
     
     
         11 . The composition according to  claim 9 , wherein said composition is an oil-in-water dispersion.  
     
     
         12 . The composition according to  claim 1 , consisting of biodermal constituents that are cytocompatible with skin.  
     
     
         13 . The composition according to  claim 1 , wherein said biodermal constituents include water.  
     
     
         14 . The composition according to  claim 1 , wherein said composition is not a complex of natural products, without any excipient or vehicle.  
     
     
         15 . The composition according to  claim 1 , wherein said composition does not comprise any excipient or vehicle including water.  
     
     
         16 . The composition according to  claim 1 , wherein each constituent is selected from the group consisting of: 
 (a) substantially cytocompatible and/or bioassimilable components present in constitutional form in the skin;    (b) macromolecular components identical or similar, respectively, to constituents of the skin;    (c) components assimilable by the skin; and    (d) inert components with respect to skin.    
     
     
         17 . A cosmetic method, comprising: 
 (a) starting from the living epidermis as an ecological medium;    (b) choosing biodermal constituents that are each cytocompatible and biomimetic with a component of the skin;    (c) choosing non-biodermal constituents that are biocompatible with the skin;    (d) formulating a composition for topically use, which comprises 98-100% by weight of said biodermal constituents, including at least one component in a major amount and at least one component in a minor amount, and 0-2% by weight of said non-biodermal constituents, so that said composition is stable and exhibits at least one non-systemic topical beneficial activity; and    (e) applying said composition on a superficial part of the human body so as to maintain the functional biological equilibria of the living epidermis ecological medium.    
     
     
         18 . A cosmetic method, comprising topically applying a composition according to  claim 1  to skin of a human.  
     
     
         19 . The method according to  claim 18 , wherein at least one of the biodermal constituents of said composition are biomimetic with a component of said skin.  
     
     
         20 . The method according to  claim 18 , wherein a major portion of said composition is a constitutive component of skin and a minor portion of said composition is a skin nutrient.