Great Lakes Quick Dissolve Collagen Peptides Unflavored 454 gAn excellent source of protein that is obtained by the most environmentally friendly method using proteolytic enzymes without the use of heat or acids. The contained low molecular weight proteins dissolve even in cold water and are easily digestible within 30 minutes of ingestion. It comes from cattle in Argentina and Brazil, which are bred in pastures and fed grasses based on American Grass Fed Association standards and animal welfare guidelines.