If you used to think that kiwifruit was the "king of vitamin C", now you can find that Rosa roxburghii is the real "king of vitamin C". The vitamin C content of Rosa roxburghii 100mg can be as high as 3730mg, which is 0/5 times that of kiwifruit. In addition, Rosa roxburghii is rich in vitamin P, which coexists with vitamin C, and has the function of protecting vitamin C from loss. It is a natural "nutrition bank".