Valor Scientific: Always-Hydrated FGF2 for Stem Cell Culture
Growth factors that are never freeze-dried, from a small protein team in Madison, Alabama. Now on the Cypher AI Marketplace.
By Cypher AI ·
Most stem cell scientists have lost a week to FGF2. A culture starts to drift or a run falls apart. You rule out the cells, the medium and the incubator, and only then suspect the growth factor. Valor Scientific was built around that problem.
WHAT IS VALOR SCIENTIFIC?
Valor Scientific is a recombinant protein company that makes growth factors that are never freeze-dried. The company launched in August 2025 in Madison, Alabama. CEO Andrew Kodani, a cellular and molecular biologist, started it with protein chemist Matthew Knuesel and Bethany Blake, who runs operations.
The first product, NativFold FGF2 146, is on the Cypher AI Marketplace as of October 2026, with more growth factors on the way. Alongside the catalog, the team works with family foundations on rare pediatric disease, including the Coffin-Lowry Syndrome Foundation in Huntsville.
WHY DOES FGF2 CAUSE SO MUCH TROUBLE IN STEM CELL CULTURE?
FGF2 is one of the most important growth factors in cell culture and, unfortunately, one of the most fragile. Human pluripotent stem cells need it to keep self-renewing, and it's a core ingredient of defined media such as Essential 8. At 37 °C it breaks down fast. In a 2013 PLOS One study, FGF2 levels in stem cell cultures fell by more than half within four hours of feeding. That's a big part of why stem cell labs change the medium every day.
The protein you start with varies too. A January 2026 study in the International Journal of Molecular Sciences compared bFGF from three suppliers. Their stability at 37 °C differed, and those differences tracked how well the cultures grew. For a stem cell lab, that variation can mean cultures that behave differently from batch to batch, and repeated experiments.
WHAT DOES FREEZE-DRYING DO TO A GROWTH FACTOR?
Freeze-drying is hard on a folded protein, and most growth factors arrive as a freeze-dried powder. Drying strips out the water that holds the protein in shape, and ice crystals can push it into inactive clumps. By Valor's estimate, only about 50 to 70% of a lyophilized growth factor is still active once it's back in solution.
NativFold skips that step. The FGF2 stays in solution the whole way, from expression through purification to the tube that reaches your bench. A protective matrix shields it through freeze-thaw. There's no powder to reconstitute, and the aim is the same activity from one lot to the next.
WHAT CAN YOU ORDER FROM VALOR SCIENTIFIC ON CYPHER AI?
As of October 2026, you can buy Recombinant NativFold FGF2 146 on the Cypher AI Marketplace in three sizes, each with a listed price: 100 µg for $252, 500 µg for $756 and 1 mg for $1,262. The 1 mg size works out to about $1.26 per µg, half the per-µg price of the 100 µg size.
NativFold FGF2 146 is the full-length, 146-amino-acid form of FGF2, at 16.5 kDa. That's the form that binds and signals through FGF receptors. It's made in E. coli, and Valor reports more than 97% monomeric purity.
FREQUENTLY ASKED QUESTIONS
Is FGF2 the same as bFGF? Yes. Basic fibroblast growth factor (bFGF) is another name for FGF2, and stem cell protocols use both names.
Do I need to reconstitute NativFold FGF2 146? No. It ships in solution, so there's no powder to dissolve before use.
Which cell cultures depend on FGF2? Human pluripotent stem cells, including iPSCs, need FGF2 to stay undifferentiated. Many tissue-specific stem cells, such as neural stem cells, also depend on it.
HOW DO YOU ORDER FROM VALOR SCIENTIFIC ON CYPHER AI?
You can browse Valor's listing at cypherbio.ai/services without an account. To buy FGF2, create a free Cypher AI account, add the size you want to your cart and place the order. The order goes straight to the Valor team, who confirm it and invoice you directly.