This collagen peptides powder is sourced from grass-fed, pasture-raised bovine to ensure a high quality and sustainable source of this powerful ingredient. Collagen is found in all of our connective tissues, tendons, ligaments and bones with its purpose being to provide these body parts with their strength, structure and elasticity. As we get older, our bodies become less efficient at producing collagen, which is why we recommend introducing ingestible collagen to your diet.