Preparation method of whitening and spot-fading emulsion
An emulsion and blemish-reducing technology, which is applied in the field of preparation of whitening and blemish-reducing emulsions, can solve problems such as skin side effects, less natural ingredients, and skin inflammation, and achieve the effect of abundant resources, low price, and easy biodegradation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment Construction
[0025] 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.
[0026] A preparation method of whitening lotion, comprising the following steps:
[0027] Step 1: Grind and sieve 10 g of licorice to obtain licorice powder, add NaOH aqueous solution with a mass concentration of 0.2 mol / L, mix according to a solid-liquid mass ratio of 1:10, and extract by hot dipping at 80°C for 2 hours. Repeat the extraction twice, filter, combine the filtrates, add 3% hydrochloric acid to adjust the pH value to 1-2.5, centrifuge at a speed of 4000r / min, collect the supernatant, and filter to obtain the licorice extract;
[0028] Step 2: Wash the maca with water, place it in a ventilated and dry place for air-dryin...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More