We currently provide four distinct lines of regular FBS:

– Preferred
– Premium
– Standard
– Qualified.

The primary difference among these FBS lines lies in their endotoxin levels:

• Premium FBS has an endotoxin specification of ≤10 EU/mL.
• Standard FBS has an endotoxin specification of ≤30 EU/mL.
• Qualified and Preferred FBS have endotoxin specifications reported as-is.

Our Preferred FBS offers a quality level suitable for cultivating most cell types and is available at our most competitive price. We highly recommend our FBS customers try it out!

The Premium, Standard, and Qualified lines are available in both U.S. origin and USDA-
approved Imported origin.