Freckle-removing and whitening comfrey toner and preparation method thereof
A technology of freckle removal, whitening and skin toner, applied in skin care preparations, medical preparations containing active ingredients, pharmaceutical formulas, etc., to achieve the effects of removing acne marks and scars, accelerating metabolism, and having a broad market prospect
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Embodiment 1
[0021] A comfrey toner for freckle removal and whitening is composed of the following raw materials in parts by weight: 28 parts of comfrey extract, 7 parts of bone collagen, 5 parts of hydrogenated lecithin, 3 parts of hyaluronic acid, 2 parts of tranexamic acid, and glycyrrhizic acid 2 parts of dipotassium, 1 part of sorbitol, 2 parts of oat β-glucan, 4 parts of butanediol, 75 parts of deionized water.
[0022] Wherein, the comfrey extract is prepared by the following method: take comfrey, wash, dry, grind into powder, add 8 times the weight of ethanol aqueous solution, soak for 1 hour, heat and reflux extraction for 50 minutes, and obtain reflux extract and reflux extraction Residue, add 4 times the weight of ethanol aqueous solution to the reflux extraction residue, ultrasonic extraction for 40min, filter to obtain the ultrasonic extraction solution and ultrasonic extraction residue, combine the reflux extraction solution and the ultrasonic extraction solution, filter, and ...
Embodiment 2
[0029] A comfrey toner for freckle removal and whitening is composed of the following raw materials in parts by weight: 29 parts of comfrey extract, 8 parts of bone collagen, 7 parts of hydrogenated lecithin, 5 parts of hyaluronic acid, 3 parts of tranexamic acid, and glycyrrhizic acid 3 parts of dipotassium, 1.2 parts of sorbitol, 2.7 parts of oat β-glucan, 7 parts of butanediol, 79 parts of deionized water.
[0030] Wherein, the comfrey extract is prepared by the following method: take comfrey, wash, dry, grind into powder, add 8.5 times the weight of ethanol aqueous solution, soak for 1.5h, heat and reflux for extraction for 52min, and obtain the reflux extract and reflux Extract the residue, add 4 times the weight of ethanol aqueous solution to the reflux extraction residue, ultrasonic extraction for 45min, filter to obtain the ultrasonic extraction solution and ultrasonic extraction residue, combine the reflux extraction solution and the ultrasonic extraction solution, fil...
Embodiment 3
[0037] A comfrey toner for freckle removal and whitening is composed of the following raw materials in parts by weight: 30 parts of comfrey extract, 9 parts of bone collagen, 7 parts of hydrogenated lecithin, 4.5 parts of hyaluronic acid, 3 parts of tranexamic acid, and glycyrrhizic acid Dipotassium 3.5 parts, sorbitol 1.5 parts, oat β-glucan 2.5 parts, butanediol 6 parts, deionized water 77 parts.
[0038] Wherein, the comfrey extract is prepared by the following method: take comfrey, wash, dry, grind into powder, add 9 times the weight of ethanol aqueous solution, soak for 1.5h, heat and reflux for extraction for 55min, and obtain the reflux extract and reflux Extract the residue, add 4.5 times the weight of ethanol aqueous solution to the reflux extraction residue, ultrasonic extraction for 45min, filter to obtain the ultrasonic extraction solution and ultrasonic extraction residue, combine the reflux extraction solution and the ultrasonic extraction solution, filter, and ev...
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