| abstract |
The needle of the present invention provides a salmon small molecule polydeoxyribonucleotide (SMPDRN) product with a molecular weight concentrated in its efficacy range and a controllable and precise preparation method thereof, as well as its application in cosmetics, medicines, nutritional foods, health care products. Applications in the food field. The molecular weight of the small-molecule polydeoxyribonucleotide in the present invention is 50bp-1000bp, and the mass of the fragment whose molecular weight is between 50bp-500bp accounts for more than 85% of its total mass. The molecular weight of SMPDRN in the present invention is concentrated in the high-efficiency range, with stronger pertinence and more stable effect. The obtained product has been confirmed by cell, animal and human experiments to improve cell activity, promote collagen synthesis, regenerate damaged skin, promote Wound healing, skin firming, increasing skin elasticity, eliminating wrinkles, delaying skin aging, anti-oxidation and preventing the formation of pigmentation spots, anti-inflammatory, repairing damaged cells, etc. have significant effects, which are superior to existing PDRN products. |