What is the difference between USDA Approved and U.S. Origin FBS?
USDA Approved FBS is collected in countries which have been approved by the USDA for bovine serum importation into the United States. Typically, the material is quarantined, sampled, and tested by the USDA prior to release. Once approved by the USDA, the material is considered legal for sale and use. U.S. Origin FBS comes from USDA licensed abbatoirs located entirely within the continental U.S.