Whitening and freckle-removing composition and preparation method therefor

The invention provides a whitening and freckle-removing composition and a preparation method therefor. The composition is composed of the following raw materials in parts by weight: 2-8 parts of radixginseng, 3-10 parts of radix astragali, 2-6 parts of radix angelicae sinensis, 0.5-3 parts of safflowers, 5-10 parts of coix seeds, 5-10 parts of radix polygonati officinalis, 5-10 parts of radix ophiopogonis, 2-10 parts of bletilla tubers, 5-10 parts of pearls, 2-6 parts of rhizoma cyperi, 2-6 parts of finger citron, 2-6 parts of purple perilla, 3-10 parts of paeonia, 2-8 parts of herba violae,2-8 parts of fructus forsythiae, 5-10 parts of cortex dictamni, 5-10 parts of broom cypress fruits and 2-8 parts of radix glycyrrhizae. According to the whitening and freckle-removing composition andthe preparation method therefor, by an extraction method comprising three steps of firstly, extracting volatile oil by adopting heating refluxing, secondly, extracting an aqueous extract by a low-temperature grinding method, an