Our products have many innovations that separate them from conventional collagen products. Nano-hydrolyzed for Maximum Absorption: ProT Gold Collagen is broken down naturally with a fruit enzyme (not heat or acids like other products) to a molecular weight of 2000 - 5000 daltons. This allows certain peptide bonds in the protein to remain intact while also facilitating incredibly rapid digestion and absorption. ProT Gold is proven to digest 4x faster than other protein supplements.  Complete Protein with 22 Amino Acids: While native collagen is exceptionally high in certain amino acids, it is naturally an incomplete protein which is missing some crucial ones. We fortify ProT Gold with Tryptophan, Histidine, Methionine, Glutamine, Cysteine, and Taurine to make a complete protein that is more powerful than other collagen products. Manufactured in the USA. Our collagen is produced domestically here in the United States.