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Dendrobium chysotoxum extract and its cosmetic use as an Anti-aging agent

a technology of dendrobium chysotoxum and extract, which is applied in the field of dendrobium chysotoxum extract and its cosmetic use as an anti-aging agent, can solve the problems of no particular activity, no specific activity has ever been demonstrated for an extract of dendrobium chtysotoxum, and the progress of biological mechanisms. , to achieve the effect of reducing the expression and/or the activity of mitochondrial proteins, low cost, and reduced the expression of mitochondrial proteins

Inactive Publication Date: 2012-03-15
LVMH RECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0030]The cosmetic composition is more particularly intended to prevent or delay the appearance of the signs of skin ageing or to slow or attenuate the effects thereof, or else also to promote cell or tissue longevity.
[0057]The extract and the composition of the invention exhibit a particularly desired effect for preventing or delaying the appearance of the signs of skin ageing or for slowing or attenuating the effects thereof, or else also for promoting cell or tissue longevity.
[0058]A second subject of the invention thus relates to the use in a cosmetic composition of at least one extract of flowers of the orchid Dendrobium chrysotoxum as an active agent intended to prevent or delay the appearance of the signs of skin ageing or to slow or attenuate the effects thereof, or else also to promote cell or tissue longevity.
[0060]Advantageously, the composition comprising said extract is itself intended to prevent or delay the appearance of the signs of skin ageing or to slow or attenuate the effects thereof, or else also to promote cell or tissue longevity.
[0063]The invention also relates to the use of an effective amount of at least one extract of flowers of the orchid Dendrobium chrysotoxum, for the preparation of a composition for preventing or delaying the appearance of the signs of intrinsic and / or extrinsic ageing of the skin, or for slowing down the effects thereof. The composition can be especially applied via topical application to at least one area of skin of an individual exhibiting visible signs of ageing such as the presence of wrinkles or small wrinkles or a loss of lustre of the skin complexion, or other signs such as a loss of elasticity and / or suppleness of the skin, a decrease in the thickness of the skin, and / or an increase in skin dryness or roughness. The composition is especially intended to be applied on the skin of an individual being over 35 years old, over 40 years old, over 45 years old, over 50 years old, over 55 years old or even over 60 years old. The composition can advantageously be applied on mature skins. It can be specifically intended to prevent or delay the appearance of the signs of ageing of the skin of the face and / or of the eyes.

Problems solved by technology

At the cellular level, the ageing results in a progressive deterioration in biological mechanisms such as the slowing of the synthesis of structural proteins (collagen, elastin).
However, until now, such agents for cosmetic applications have never been described.
Until now, no particular activity has ever been demonstrated for an extract of flowers of Dendrobium chtysotoxum.

Method used

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  • Dendrobium chysotoxum extract and its cosmetic use as an Anti-aging agent

Examples

Experimental program
Comparison scheme
Effect test

example 1

Preparation of extracts of flowers of Dendrobium chrysotoxum

[0071]Preparation of the Extracts of the Invention

[0072]Four extracts as well as two other extracts serving as a comparison were prepared according to the invention.

[0073]The plant material of extracts S-1, S-2, 5-3 and 5-4 consisted of flowers of the orchid Dendrobium chrysotoxum. The extracts R and G were obtained from roots of the Dendrobium chrysotoxum orchid or from the leaves of the Grammatophyllum sp. orchid.

[0074]The plant material, in a dry state and ground, was subjected to an aqueous alcohol extraction with 90 / 10 v / v ethanol / water under reflux for 30 minutes in order to prepare extracts 5-1, R and G. The extraction solvent was then removed to obtain a dry extract.

[0075]The above extraction was reproduced to obtain the extracts S-2, S-3 and S-4 changing the extraction solvent and the temperature conditions. Two extraction temperatures were tested: ambient temperature (AT) for 16 hours, or else hot (solvent reflux...

example 2

Immunoenzymatic Assay of the Level of Expression of the Protein Smac / DIABLO in Normal Human Keratinocytes (NHK)

[0078]2.1—Preparation of the Positive Control and Solutions of Extracts

[0079]Forskolin is a known activator of the expression of survivin (cf. example 1 of the patent application FR2932086).

[0080]For the test below, an extract of Coleus forskolii which contains at the minimum 98% by weight of forskolin was used as the positive control. Such an extract is marketed in the form of powder for example by SIGMA.

[0081]The extract powder was dissolved in DMSO so as to obtain a forskolin concentration (molar mass=410.5) of about 10−6 M.

[0082]The solution of the positive control thus prepared was added to the culture medium so as to obtain a dilution to one thousandth, i.e. a forskolin concentration equal to about 10−9 M.

[0083]In parallel, a solvent control (DMSO), diluted to one thousandth in the culture medium, was prepared.

[0084]The stock solution of each extract tested (S-1 to 5-...

example 3

Anti-Ageing Cream for the Face

[0103]The extract of flowers of Dendrobium chrysotoxum used as an active agent in this cosmetic composition was obtained by reproducing the process of Example 1 (extract S-1).

[0104]The dry extract was dissolved at 2% w / w in a 60 / 40 v / v glycerol / water mixture.

[0105]This solution of extract was used as an active agent for the preparation of the cosmetic composition below (% expressed by weight relative to the final composition):

Phase A2% solution of Dendrobium chrysotoxum extract1Phenoxyethanol0.5Xanthan gum0.2Acrylates / C20-30 alkylacrylate crosspolymers0.2Tetrasodium EDTA0.1Waterqsqs: quantity sufficient to dissolve the compounds of phase A.

Phase BHydrogenated polyisobutene4Squalane3Caprylic / capric triglycerides3Pentylene glycol3Glyceryl stearate3PEG-100 stearate2.5Beeswax1.5Dicaprylyl carbonate1.5Cetyl alcohol1Stearyl alcohol1Dimethicone1

Phase CSodium hydroxide0.04Waterqs 100qs 100: quantity sufficient for 100% of the final composition

[0106]The excipien...

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Abstract

The invention relates to a cosmetic composition comprising at least one extract from the orchid Dendrobium chrysotoxum as an active agent and at least one cosmetically acceptable excipient.The invention relates to the use in a cosmetic composition of an extract from the orchid Dendrobium chrysotoxum as an active agent for preventing or delaying the appearance of the signs of skin ageing or for slowing or attenuating the effects thereof, or else also for promoting cell or tissue longevity.The invention in particular relates to an orchid extract inhibiting the expression and / or the activity of the mitochondrial protein Smac / DIABLO.

Description

[0001]The invention relates to a novel cosmetic composition, comprising at least one extract from the orchid Dendrobium chrysotoxum as an active agent and at least one cosmetically acceptable excipient, in particular for preventing or delaying the appearance of the signs of skin ageing, for slowing or attenuating the effects thereof, or else also for promoting cell or tissue longevity.STATE OF THE ART[0002]Skin ageing reveals itself in numerous changes intrinsic to the skin and the progressive appearance of visible signs which modify the beauty and the quality of the skin. The skin texture is less fine, and numerous skin blemishes develop.[0003]At the cellular level, the ageing results in a progressive deterioration in biological mechanisms such as the slowing of the synthesis of structural proteins (collagen, elastin).[0004]Apoptosis, a type of programmed cell death, is an active biological process of elimination of cells from the body, by fragmentation and under genetic control.[0...

Claims

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Application Information

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IPC IPC(8): A61K8/97A61Q1/02A61Q19/08A61K31/352A61K8/99
CPCA61K8/97A61K36/53A61K36/8964A61K36/8984A61K2236/333A61K2800/782A61Q19/08A61K2300/00A61K8/9706A61K8/9722A61K8/9789A61K8/9794A61K8/99A61Q19/007A61Q19/02A61K2800/59A61K2800/80A61K2800/43A61K2800/5922A61Q19/00A61Q19/04A61Q19/06
Inventor LEPLANQUAIS, VIRGINIEANDRE, PATRICEPECHER, VIRGINIE
Owner LVMH RECH
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