Catabolic Filling Thread and Its Preparation Method

Abstract

This disclosure relates to a catabolic filling thread and its preparation method. The catabolic filling thread provided according to this disclosure consists of poly-L-lactic acid, with a molecular weight of 30,000 Da to 150,000 Da. The catabolic filling thread of this disclosure, composed of poly-L-lactic acid, is absorbable, leaves no residue, and metabolizes into lactic acid within the human body. This configuration ensures that when using the catabolic filling thread of this disclosure for filling procedures, not only does the catabolic filling thread itself serve to fill and tighten, but the lactic acid produced after its metabolism continues to stimulate fibroblasts in the skin and subcutaneous tissue. This stimulates fibroblasts to reconstruct the collagen framework within the human body, thereby enabling the catabolic filling thread to exert its filling and tightening effects in a long-lasting and sustained manner.