A lotion for whitening and protecting skin
A skin care lotion, a functional technology, applied in skin care preparations, skin diseases, allergic diseases, etc., can solve problems such as human injury, non-compliance with environmental protection requirements, lack of beauty, beauty and skin care, etc., to avoid dry skin. itching effect
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[0012] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0013] The invention provides a technical solution: a functional whitening skin care milk, which is composed of the following raw materials: glycerin, butylene glycol, water, hydrogenated lecithin, centella asiatica extract, fig fruit extract, 1,2-hexanediol Alcohol, Ceramide 3, Safflower, Hibiscus, Olive Oil, Lanolin, White Oil, Propylene Glycol, Comfrey Extract, Hedyotis diffusa Extract, Burnet Extract.
[0014] Heat 0.1% sulfuric acid aqueous solution to 60°C, add 1,2-epoxybutane dropwise within 1h, keep warm at 60-70°C for 0.5h, neutralize with 40% liquid caustic soda to pH7-7.5, evaporate under reduced pressure After water, rectify and collect the butanediol in the raw material obtained by fractional distillation at 110°C and 3.72kPa.
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