1 results about "Hamamelis mollis" patented technology

This invention discloses a traditional Chinese medicine compound extract with acne-removing effects, comprising the following traditional Chinese medicine components in parts by weight: purslane 2-4 parts, witch hazel root 4-8 parts, centella asiatica 4-8 parts, astragalus membranaceus 1-3 parts, schizonepeta tenuifolia 1-3 parts, and violet cress 5-7 parts; the preparation method of this traditional Chinese medicine compound extract specifically includes the following steps: S1. Weigh the traditional Chinese medicine components according to the formula amount, pulverize them, mix them to obtain a traditional Chinese medicine mixed powder, put the traditional Chinese medicine mixed powder into a container, and add liquid. S1. Using an extraction solvent with a ratio of 1:(10-20), ultrasonically extract for 1-1.5 hours, then filter to separate the extract from the residue. Set the extract aside. S2. Return the residue from step S1 to the container, add distilled water with a material-to-liquid ratio of 1:(10-20), ultrasonically extract for 1-1.5 hours, then filter to obtain the second extract. S3. Combine the extracts from steps S1 and S2, concentrate until there is no alcohol odor and the concentration of crude drug is (0.1-0.2) g•mL. ‑1 This refers to extracts from compound traditional Chinese medicine formulas.