Refreshing anti-itching skin care composition
A skin care composition and the technology of the composition are applied in the directions of drug combinations, preparations for skin care, skin diseases, etc., and can solve the problems of uneven quality, physical injury, insufficient drug efficacy, etc., and achieve brightening skin tone, repairing and protecting skin. , The effect of improving skin immunity
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[0011] In some of the embodiments, the preparation method of the Tanaka extract includes the following steps:
[0012] 1) Add the dried Tanaka bark powder to the extraction solvent, extract by percolation, filter, and collect the filtrate;
[0013] 2) Use a centrifuge to remove impurities from the filtrate, discard the sediment, collect the supernatant, and set aside;
[0014] 3) Put the supernatant obtained by centrifugation into a concentrator, and carry out vacuum evaporation and concentration to obtain a concentrated solution;
[0015] 4) Step 3) The concentrated solution is purified on an MCI resin column and washed with water to remove impurities. The volume percentage concentration is 30-50% ethanol to remove impurities, and the volume percentage concentration is 60-85% ethanol to elute. Collect the eluate;
[0016] 5) Step 4) The eluent is added with activated carbon for decolorization, filtered, concentrated, and dried to obtain the tanaka extract.
[0017] In step 1), in order ...
Embodiment 1
[0029] Based on the total weight of the composition and in percentage by weight, the composition contains 5% of Tanaka extract, 4% of 1‰ aqueous solution of oat (AVENA SATIVA) peptide, and chamomile (CHAMOMILLA RECUTITA) flower extract 6 %, 0.2% potassium sorbate, the balance of deionized water.
[0030] The tanaka extract is prepared by the following method: 1 kg of dried tanaka bark powder is added to 2.5 times 65% ethanol and percolated for three times, filtered, and the filtrate is collected; the filtrate is placed in a centrifuge and heated to 3,500 rpm. Centrifuge for 25 minutes at 1 / min, discard the precipitate, collect the supernatant, and set aside; put the supernatant obtained from the centrifugation into a concentrator, and evaporate under reduced pressure to concentrate to a density of 1.05-1.10 (50℃); put the concentrate on MCI Resin column purification, 5 column volumes of purified water to remove impurities, 5 column volumes of 45% ethanol to remove impurities, and...
Embodiment 2
[0032] Based on the total weight of the composition and in weight percentage, the composition contains 10% of Tanaka extract, 10% of 1‰ aqueous solution of oat (AVENA SATIVA) peptide, and 0.1% of chamomile (CHAMOMILLA RECUTITA) flower extract. %, Polygonum cuspidatum root extract 5%, tea (CAMELLIA SINENSIS) leaf extract 0.1%, borneol 0.001%, potassium sorbate 0.5%, the balance of deionized water.
[0033] The tanaka extract is prepared by the following method: adding 1 kg of dried tanaka bark powder to 3 times 65% ethanol percolation for extraction three times, filtering, and collecting the filtrate; placing the filtrate in a centrifuge, and 3500r Centrifuge for 25 minutes at / min, discard the precipitate, collect the supernatant, and use it for later use; put the supernatant obtained from the centrifugation into a concentrator, and evaporate under reduced pressure to concentrate to a density of 1.05-1.10 (50℃); put the concentrate on MCI Resin column purification, 4 column volum...
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