Alcoholic extract of aerial parts of Solidago virgaurea subsp. alpestris, method of production thereof, and cosmetic or dermatological composition containing it
AssigneesChanel Parfums Beaute, Centre National de la Recherche Scientifique (CNRS), Universite De Nice Sophia Antipolis
InventorsSerge Holderith, Anais Tromeur, Irina Berlin, Xavier Fernandez, Alexandre Casale, Johannes Grillari, Ingo Lammermann, Florian Gruber, Marie-Sophie Narzt, Gaëlle Gendronneau
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Abstract
An alcoholic extract of aerial parts of Solidago virgaurea subsp. alpestris, the method of production thereof, a cosmetic or dermatological composition containing it, as well as cosmetic and dermatological uses thereof, notably in the treatment of signs of skin ageing.
Claims7
A cosmetic or dermatological composition comprising, in a cosmetically or pharmaceutically acceptable vehicle, an effective amount of an alcoholic extract of aerial parts of Solidago virgaurea subsp. alpestris,
- wherein said cosmetic or dermatological composition is in a form of an emulsion, and
- wherein said alcoholic extract of aerial parts of Solidago virgaurea subsp. alpestris is obtained by a method comprising the following steps:
- a) extracting a mixture of flowers, leaves and stems of Solidago virgaurea subsp. alpestris, previously dried and ground, with ethanol, at a temperature between 40° C. and 60° C. for 2 h to 5 h, to obtain an extracted mixture;
- b) incubating the extracted mixture obtained in a) for at least 12 h at a temperature between 2° C. and 6° C. to obtain an incubated mixture;
- c) filtering the incubated mixture obtained in b) to obtain a filtrate, bleaching the filtrate by adsorption on activated charcoal to obtain a decolored filtrate, filtering the decolored filtrate on a 20-μm membrane to obtain a final filtrate;
- and
- d) removing the ethanol from the final filtrate obtained, and then making a final dilution in 1,3-propanediol to obtain said alcoholic extract.
A method for producing an alcoholic extract of Solidago virgaurea subsp. Alpestris comprising the steps of:
- a) extracting a mixture of flowers, leaves and stems of Solidago virgaurea subsp. alpestris, previously dried and ground, with ethanol at a temperature between 40° C. and 60° C. for 2 h to 5 h, to obtain an extracted mixture;
- b) incubating the extracted mixture obtained in a) for at least 12 h at a temperature between 2° C. and 6° C. to obtain an incubated mixture;
- c) filtering the incubated mixture obtained in b) to obtain a filtrate, bleaching the filtrate by adsorption on activated charcoal to obtain a decolored filtrate, filtering the decolored filtrate on a 20-μm membrane to obtain a final filtrate;
- and
- d) removing the ethanol from the final filtrate obtained, and then making a final dilution in 1,3-propanediol to obtain said alcoholic extract.
Dependencies are inferred from the claim text.