What role does the collagen product of Jiangxi Tongyuantang Health Industry Co., Ltd have?

I have been using collagen myself for almost 2 years, and there are more than a dozen brands. Personally, the effect is good, reaching the first-class level of similar products. I have used this collagen and homologous tripeptide for more than half a year. The most obvious thing is that the skin has improved very well, and everything else is OK. I value this model mainly because of its good effect and high cost performance.