Colorado Biolabs

Colorado Biolabs, Inc. specializes in the manufacture of premium iron supplementation products. Only Proferrin® brand products use the highest quality Heme Iron Polypeptide (HIP) available. Unlike other "Heme Iron" products, Proferrin® is the predigested and highly concentrated form of iron naturally absorbed from eating meat. The unique combination of high absorption and exceptionally low side effects sets Proferrin® iron supplements apart from conventional iron products. Other iron products that claim to have "Heme Iron" in them only contain a tiny amount of Heme Iron and then add other lessor forms of iron to "enrich" their formula, the iron in Proferrin® is 100% Heme Iron in the form of Heme Iron Polypeptide. Proferrin® is the only Heme Iron Polypeptide product manufactured in the United States which means that it is the only HIP that gives you the assurance of manufacture under stringent control and adherence to the United States Food and Drug Administration's current Good Manufacturing Practice standards.