RMBIO FBS is sourced from USDA-approved suppliers and is processed in our cGMP-compliant and FDA-registered facility. RMBIO FBS is processed under strict protocols that ensure sterility, high quality, and excellent growth-promotion and performance over a range of applications and cell lines.

• Low endotoxin and hemoglobin levels
• Excellent growth promotion characteristics
• Average endotoxin level*: < 1 EU/mL (specification = ≤ 10.0 EU/ml)
• Average hemoglobin level*: < 15 mg/dL (specification = < 30 mg/dL)
• Total protein: 3.0-4.5 g/dL
• Triple 0.1 µm sterile filtration
• 9CFR-tested
• US origin
• Storage conditions: ≤ -10° C
• Gamma irradiation 25-40kGy

*Data based on last 10 lots produced.

Gamma Irradiation 101
Gamma irradiation is a physical inactivation approach used to achieve pathogen reduction in the serum. This mitigates risk from low-level contaminants that may not be detected through viral or mycoplasma testing. RMBIO serum is gamma irradiated via controlled exposure to Cobalt 60 at an industry standard dose of 25-40kGy. Most typical viral contaminants of bovine serum are readily inactivated at this irradiation range. Advantages of gamma irradiation include:
No potential for residual contaminants

• Widely accepted by pharmaceutical and research industries
• Accepted by regulatory agencies
• Minimal effect on product performance
• Effective virus inactivation

Gamma Irradiated Fetal Bovine Serum (FBS) specific product test requirements and typical values are given below: