101 results about "Graying hairs" patented technology

The invention discloses a hair blackening and nourishing solution and a preparation method thereof. The hair blackening and nourishing solution is prepared from the following raw materials in part by weight: 50 to 60 parts of tuber fleeceflower root, 40 to 50 parts of Chinese arborvitae twig, 10 to 20 parts of yerbadetajo herba ecliptae, 35 to 45 parts of incised notopterygium rhizome, 40 to 50 parts of Chinese angelica, 6 to 8 parts of Szechuan lovage rhizome, 10 to 20 parts of astragalus, 10 to 15 parts of henna and 5 to 15 parts of indigo. The preparation method comprises the following steps of: mixing the raw material in weight parts, putting into an extracting tank, adding water, performing heat reflux extraction for 1.5 to 2.5 hours, filtering out a liquid medicine, adding water into the extracting tank, performing heat reflux extraction for 1.5 to 2.5 hours, filtering out a liquid medicine, and mixing the two liquid medicines; and concentrating to ensure that the density is 0.85-0.9 relative to water, adding ethanol into a concentrated solution for precipitation, standing for 48 hours, and absorbing supernate, wherein the supernate is the herbal essence hair blackening and nourishing solution. The prepared hair blackening shampoo can safely and effectively penetrate subcutaneous tissues, has the effects of blackening gray hair, strengthening weak hair and brightening dry hair, and is safe without toxic or side effect.