Does your serum contain tetracycline?
We do not add this antibiotic to serum during manufacturing. Tetracycline is an antibiotic which is often used to treat animals prior to slaughter. Although there should be sufficient time between the last dose of antibiotic and slaughter for the drug to metabolize, this is not always the case and the serum may contain residual amounts of tetracycline.
Gemini tests each lot of fetal bovine serum and Fetalplex™ for tetracycline and we report these results on the product’s respective Certificate of Analysis.