Eye cream for removing dark circles and eye bags and preparation method
A technology for eye circles and eye bags, which is used in skin care preparations, medical preparations containing active ingredients, pharmaceutical formulas, etc. Circulation of blood vessels, improvement of dark circles and bags under the eyes
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preparation example 1
[0032] The preparation of preparation example 1 salvia miltiorrhiza extract
[0033] Grind Salvia miltiorrhiza, add water and decoct three times, combine the decoction, filter to obtain the filtrate, spray dry the filtrate to obtain the primary extract powder; add the primary extract powder to extract three times with ethyl acetate, combine the extract, concentrate under reduced pressure, add neutral alumina and activated carbon powder, stirred and placed at low temperature; filtered to take the filtrate, and distilled under reduced pressure to remove the solvent to obtain Danshen extract powder, which was prepared by adding deionized water into an aqueous solution with a mass fraction of 3% wt to obtain the Salvia miltiorrhiza extract.
[0034] In the preparation method of the above-mentioned Danshen extract, when adding water for decocting, the quality of adding water each time is 8 times the quality of Danshen; for adding ethyl acetate, the quality of adding ethyl acetate ea...
preparation example 2
[0035] The preparation of preparation example 2 Gastrodia elata extract
[0036] Gastrodia elata was pulverized and then added with ethanol for microwave extraction, filtered, and the filtrate was collected, and the solvent was distilled off under reduced pressure to obtain gastrodia elata extract powder, which was prepared by adding deionized water to make an aqueous solution with a mass fraction of 3% wt to obtain the gastrodia elata extract.
[0037] In the above preparation method of Gastrodia elata extract, the ethanol is 55%wt ethanol aqueous solution, and the dosage is 3 times of the quality of Gastrodia elata crude drug.
preparation example 3
[0038] The preparation of preparation example 3 peach kernel extract
[0039] The peach kernel is pulverized into superfine powder, and the peach kernel extract powder is obtained by supercritical extraction with carbon dioxide, and deionized water is added to prepare an aqueous solution with a mass fraction of 3% wt to obtain the peach kernel extract.
[0040] In the above preparation method of peach kernel extract, the carbon dioxide supercritical extraction conditions are 20-24MPa, 46-50°C, 15min, and the flow rate of carbon dioxide is 11-15L / h.
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