Pine needle extract for skin, cosmetic creams and applications using it
A pine needle extract and skin technology, applied in the field of inhibiting and/or improving skin dryness, tight pine needle extract, and pine needle extract for skin, can solve the problem of not using too much frequency, exacerbating side effects, dry skin And other issues
Active Publication Date: 2020-07-10
REJUVEN DERMACEUTICAL CO LTD
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Problems solved by technology
[0011] The above-mentioned prior art all use a combination of light and collagenase inhibitors. Although the light is generally harmless to human skin, it is found in actual use that long-term use of light irradiation will still produce certain side effects, such as dry skin, Slightly tight, etc., and the frequency of use should not be too high, which will aggravate the above side effects
Method used
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Embodiment 1
[0019] Example 1: The pine needles were dried, pulverized, and added to an aqueous solution of 80% ethanol, wherein the mass-volume ratio of the pine needles to the aqueous ethanol solution was 1:25. Then add a certain amount of ethyl acetate, wherein the volume ratio of ethyl acetate to aqueous ethanol is 1:10. Heat extraction for 1.5 hours, filter, repeat the above extraction and filtration steps twice, collect the filtrate, concentrate in vacuum to obtain the extract, add n-hexane, use macroporous resin for adsorption separation, obtain the eluate, concentrate under reduced pressure, and obtain Example 1 .
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The invention discloses a pine needle extract for skin, a beauty cream prepared by using the pine needle extract and application. According to the pine needle extract, 80 percent ethanol aqueous solution containing a certain amount of ethyl acetate is used as an extracting solvent; compared with a pine extract obtained by other extracting solvents, the pine extract prepared by using the pine needle extract disclosed by the invention has the advantages that the symptoms of dryness, tightening and the like of the skin can be preferably inhibited and / or improved, and the pine needle extract is safe without a side effect and can be used for a long time.
Description
technical field [0001] The present invention relates to the field of cosmetics. Specifically, it relates to a pine needle extract for skin, a cosmetic cream prepared using the same and application thereof. More specifically, it relates to a pine needle extract for suppressing and / or improving skin dryness and tightness, a cosmetic cream prepared using the same and application thereof Background technique [0002] Pine trees are widely distributed in the world, and the most important distribution area is the northern hemisphere, which belongs to the most important forest tree species in the northern hemisphere. There are a large number of distributions in many areas in my country such as Beijing, Huangshan, Huashan, and Changbai Mountain. The representative part of the pine tree is mainly pine needles, which contain higher medicinal ingredients than other parts, rich in volatile oils, flavonoids, resins, cellulose, lignin, chlorophyll, carotene, vitamins and other substances...
Claims
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IPC IPC(8): A61K8/9767A61Q19/00
CPCA61K8/97A61Q19/00
Inventor 仓勇
Owner REJUVEN DERMACEUTICAL CO LTD