Sunscreen skin care product and preparation method thereof
A technology for skin care products and products, which is applied in the directions of skin care preparations, cosmetic preparations, cosmetics, etc., to achieve the effect of good effect, easy production and storage, and good absorption of ultraviolet rays
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Embodiment 1-6
[0061] The total flavonoids of peanut shells were prepared according to the following method: add 25ml of ethanol with a volume concentration of 70% to 1g of dry peanut shell powder, mix the two; Thermally combine the obtained extracts, filter off the residue; concentrate the filtrate under reduced pressure, pass through LSA-30 macroporous adsorption resin, first elute with distilled water until it is colorless, then use 30% to 95% ethanol for gradient elution, and detect the elution liquid and collect the active components (when the eluate is detected to be colorless with 1% aluminum trichloride methanol solution by mass percentage, it indicates that the eluate has been completely eluted); the obtained resin eluate is concentrated under reduced pressure and freeze-dried to obtain Total flavonoids from peanut shells with a purity of 26.05%. The total flavonoids of Sophora japonica is prepared according to the following method: according to the addition ratio of 1g of dried Sop...
Embodiment 1
[0065] ③Under stirring, add the dissolved phase A into the dissolved mixed phase B and C, and homogenize at 80°C for 2-5 minutes;
[0066] ④ Add phase D while stirring, then add phase E citric acid and phase F essence when the temperature is lowered to 45°C-50°C, mix well and get ready.
[0067] The sunscreen and skin care products prepared in each embodiment were measured with reference to QB / T 2410-1998 ("Evaluation Method for Sunscreen Effect of Sunscreen Cosmetics in UVB Area Ultraviolet Absorbance Method"), and the absorbance of the product was measured between 280 and 400 nm in wavelength, and respectively According to the following formula 1 and formula 2, the average value of the absorbance A at the wavelength of the UVB and UVA regions is obtained, and they are respectively recorded as A UVB and A UVA , the results are shown in Table 2.
[0068] UVB area 280~320 nm:
[0069] A UVB = (A 280 +A 290 +A 300 +A 310 +A 320 ) / 5 Formula (1)
[0070] UVA region...
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