Cosmetic Composition Containing Acetylated Oligoglucuronans

a technology of acetylated oligoglucuronans and cosmetic compositions, which is applied in the direction of biocide, plant growth regulators, animal husbandry, etc., can solve the problems of dermo-epidermal disorganisation, not proposing oligosaccharides for improving skin elasticity, and skin becomes marked and tired

Inactive Publication Date: 2011-10-13
SEDERMA SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Over time, however, skin becomes marked and tired.
During skin ageing the DEJ flattens and the adhering properties of the epidermis are reduced, resulting in dermo-epidermal disorganisation.
This document, however, does not propose oligosaccharides for improving the elasticity of the skin.
Over time, the free radicals to which we are exposed destroy it.
Over time, however, its renewal falls, resulting in progressive loss of elasticity and hardening of the skin.

Method used

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  • Cosmetic Composition Containing Acetylated Oligoglucuronans
  • Cosmetic Composition Containing Acetylated Oligoglucuronans
  • Cosmetic Composition Containing Acetylated Oligoglucuronans

Examples

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formulation examples

B. Formulation Examples

[0420]P0 is a solution containing the acetylated oligoglucuronans obtained from the process described above.

[0421]For improved stability and better penetration, the acetylated oligoglucuronans can be enclosed in liposomes.

[0422]P1 and P2 are solutions in liposomes, containing the stored acetylated oligoglucuronans. More specifically, P1 and P2 may contain:[0423]8.7% acetylated oligoglucuronan: “mixture a”,[0424]8.8% acetylated oligoglucuronan: “mixture b”,[0425]8.9% acetylated oligoglucuronan: “mixture c”,[0426]9% acetylated oligoglucuronan: “mixture d”,[0427]9.1% acetylated oligoglucuronan: “mixture e”,[0428]9.2% acetylated oligoglucuronan: “mixture f”,[0429]or a mixture of these, for example a+b+c+d+e+f or a+b or a+c+d+e or a+e.

[0430]The preparations P0, P1 and P2 are preferred embodiments of the invention:

Starting materialsP0P1 (%)P2 (%)Acetylated oligoglucuronans obtained100%qs 100%qs 100%according to the process described aboveSodium disulfiteEDTALecithin...

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Abstract

The present invention relates to the field of cosmetic and dermopharmaceutical compositions. It concerns oligomer compounds of D-glucuronic acid or D-glucuronate with a β (1-4) sequence (or oligoglucuronans) containing a degree of acetylation specifically between 8.7±0.5 and 9.2±0.5% by weight of O—CO—CH3 group compared to the weight of glucuronic acid and with a degree of polymerisation (DP) of 18−19±2. The oligomer compounds according to the present invention are intended to stimulate the elasticity of the dermis and epidermis although they also act to increase derma-epidermal cohesion in order to combat skin ageing, lines, wrinkles, visible and/or tactile skin discontinuities, loss of firmness, elasticity and tone and to combat skin tissue deformability. The invention also concerns a cosmetic composition containing at least one compound as recited according to the present invention.

Description

TECHNICAL FIELD[0001]The present invention relates to the field of cosmetic and dermopharmaceutical compositions. It applies typically, but not exclusively, to the field of cosmetics and dermopharmacy.BACKGROUND ART[0002]Skin deformability is a reflection of its vitality. A skin with elasticity is one that, despite the permanent malleability of the skin tissue, returns to its initial appearance after the deformation forces stop.[0003]Over time, however, skin becomes marked and tired. It is continually subjected to a large number of mechanical forces: stretching, yawning, smiling, to which the skin tissue responds more or less well depending on the persons and their age.[0004]Skin tissue consist of a superficial layer, the epidermis, and deeper layers, the dermis and hypodermis, each of which has specific properties allowing the whole skin to respond and adapt to its environmental conditions.[0005]The dermis acts as the support for the epidermis. It is mostly formed from fibroblasts ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K9/14A61K35/74A61Q19/00A61K31/715
CPCA61K8/73C08B37/006A61Q19/08A61P17/00A61K8/0216A61K9/0014A61Q17/04A61Q19/007A61Q19/02
Inventor FOURNIAL, ARNAUDGRIZAUD, CLAIRE-MARIELE MOIGNE, CAROLINEMONDON, PHILIPPE
Owner SEDERMA SA
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