Yes, but there are additives in collagen sold in the market now, and it is easy to get fat if you drink too much. When purchasing collagen products, we should comprehensively consider the raw material source, technology, purity, color, taste, clarity, molecular weight, ash and other indicators, pour a small amount of collagen peptide powder or particles on a piece of white paper prepared in advance, and compare the color of collagen peptide with that of white paper. The brighter the color, the purer the quality of collagen peptide that is closer to the color of white paper. The smaller the smell, the better the quality of collagen peptide. The color of ordinary or low-quality collagen peptides in granular state is yellow, gray, grayish yellow or reddish mixed yellow-brown, and the color is dark and dull. Even in the powder state of 100 mesh or more, it is yellow, light yellow or light yellow with red and other impure variegated colors. Recommended brand: China Tomson Bianjian