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What is FBS (Fetal Bovine Serum)?

FBS (fetal bovine serum) is the most widely used serum supplement in cell culture. Learn what it is, how it’s produced, and what to look for in a supplier.

CPHI 2026 Milan — SeamlessBio

SeamlessBio is at CPHI Worldwide 2026 in Milan — Hall 12, F75. If you are dealing with FBS supply pressure, evaluating serum-free alternatives, or looking to qualify a backup supplier […]

What is FBS Low IgG?

FBS low IgG contains reduced bovine immunoglobulin levels for hybridoma culture and antibody production. Learn the difference between low IgG and ultra-low IgG FBS.

FBS Supply Shortage 2026

The FBS market is facing its most significant supply crisis in decades — and it is structural, not temporary. For procurement managers at CROs, ATMP manufacturers, vaccine producers, and research […]

Cell Counting for AAV Production

You can control your FBS lot, your plasmid prep, your PEI ratio, and your CO₂ — and still get 3× titre variation between runs because you seeded the wrong cell […]

OrganoMedium — Serum-Free Organoid Culture

Organoid research has a reproducibility problem — and the medium is a major contributor. Most organoid protocols were developed with conditioned media or undefined serum-containing supplements whose composition changes between […]

NaivaCore — What Is Naive Stem Cell Culture and Why Does Medium Matter?

Most iPSC labs work with primed pluripotent stem cells without realising there is an alternative state — naïve pluripotency — that has fundamentally different properties for differentiation, chimerism, and disease […]

BSA Grades Guide

BSA comes in multiple grades — and using the wrong one can ruin your assay, your serum-free medium, or your DMPK data. Standard grade is not a universal default. This […]

Guinea Pig Complement

Guinea pig serum is the universal complement source for hemolytic assays — used in CH50 standardisation, complement fixation serology, and vaccine immunogenicity studies. The reason is simple: guinea pig complement […]

SimplaceX vs FreeStyle 293 vs Expi293

FreeStyle 293 and Expi293 from Thermo Fisher are the market reference media for HEK293 serum-free culture. This comparison is not about which medium is “better” — it is about which […]