Concealer with spot-fading and whitening effects
A concealer and whitening technology, applied to medical preparations containing active ingredients, skin care preparations, cosmetics, etc., can solve problems such as skin damage, poor concealer effect of concealer products, poor makeup effect, etc., to achieve delicate makeup, Effect of reducing melanin production
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[0024] The preparation method of lilac leaf extract described in embodiment 1~5 comprises the following steps:
[0025] Wash and dry the lilac leaves, crush them through a 60-mesh sieve, add 70% ethanol at a material-to-liquid ratio of 1:15, and extract them with stirring in a water bath for 2 hours at 50°C, extract twice, filter, and combine the filtrates to evaporate by rotary evaporation Ethanol was removed to obtain lilac leaf extract.
Embodiment 1~5
[0026] The preparation method of kapok extract described in embodiment 1~5 comprises the following steps:
[0027] Wash the kapok to remove impurities and dry it in the shade, crush it through a 60-mesh sieve, add an ethanol solution containing 1% HCl by volume according to the ratio of material to liquid 1:40, and extract for 60 minutes; place it in an ultrasonic generating device for ultrasonic-assisted extraction, and ultrasonically Power 250W, extract for 60min, filter, and remove ethanol from the filtrate by rotary evaporation to obtain kapok extract.
[0028] The preparation method of the extract of jiuli fennel leaves described in Examples 1 to 5 comprises the following steps:
[0029] Wash and remove impurity and dry in the shade, crush and pass through a 60-mesh sieve, add 50% ethanol according to the ratio of material to liquid 1:10, reflux extraction at 90°C for three times, each time for 2 hours, filter, combine the filtrates, and remove ethanol by rotary evaporati...
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