Preparation method of whitening and spot-fading lotion containing herba centellae extract
The technology of centella asiatica extract and extract is applied in the field of preparation of whitening and spot-lightening lotion, which can solve the problems of causing skin inflammation, skin side effects, and few natural ingredients, and achieves no pollution, easy biodegradation, and abundant resources. Effect
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[0027] The technical solutions in the present invention are clearly and completely described below in conjunction with the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] A preparation method of a whitening lotion containing centella asiatica extract, comprising the following steps:
[0029] Step 1: Weigh Centella asiatica, wash, dry, grind into powder, send it into a percolator, and use 10-13 times the weight of ethanol aqueous solution for percolation treatment to obtain percolation liquid and percolation residue. Add 2-3 times the weight of ethanol aqueous solution, soak for 6-10h, ultrasonically extract for 50-60min, obtain ultrasonically extracted liquid and ultrasonically extracted residue, combine ultrasonically extracted liquid with percolation liquid, filter, and evaporate the filtrate ...
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