growth factors

made for stem cells

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we control every step of protein manufacture ensuring all our products are completely animal-free

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stringent purity and bioactivity testing data for all proteins – know what you are giving your cells

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our R&D team are dedicated to solving stem cell culture challenges with optimised forms and animal-free firsts

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recombinant human IGF-1 LR3

IGF-1 LR3 is an important factor in the maintenance of human pluripotent stem cells

Qkine IGF-1 LR3 is

  • high purity and bioactivity
  • animal-free
  • suitable for chemically defined media
  • cost-effective

trusted by experts

“Our lab has been using FGF2 and activin A from Qkine in stem cell cultures for many months now. Our epiblast stem cells and trophoblast stem cells never looked better. Qkine has provided us with exceptional customer service and most importantly top-quality, affordable growth factors. We will be definitely using their products in the future.”
Prof Jan Zylicz, Novo Nordisk Foundation, University of Copenhagen

Qk013 Recombinant human HGF (NK1) promotes highly homogeneous expression of HNF4α in hepatocyte-like cells differentiated from iPSCs

HGF (NK1) promotes efficient differentiation of human iPSCs to hepatocyte-like cells at just 10ng/ml with highly homogenous expression of the hepatic marker, HNF4a

Stemnovate , Cambridge, UK

Recombinant human activin A PLUS, Qk005, and recombinant zebrafish Fgf2, Qk002,  feature in the recent publication:
Kinoshita, M. et al. Capture of Mouse and Human Stem Cells with Features of Formative Pluripotency. Cell Stem Cell (2020) doi:10.1016/j.stem.2020.11.005.

Austin Smith Lab, Cambridge Stem Cell Institute
“We have used GDF15 from Qkine in cellular experiments and in vivo and it performs very well. Qkine staff are communicative and efficient and delivery times are excellent.”
Prof Stephen O’Rahilly, University of Cambridge, UK


In this week’s #FridayRead Yusuf et al investigate the neuroprotective role of FGF9 in Huntington’s disease. Discovering that, in HD neurons, FGF9 alters synaptic protein expression and neuronal morphology through the NF-κB signalling pathway. FGF9 is coming soon to Qkine!


What should I look for when choosing growth factors? For a quick guide on what to consider while shopping look over our buying growth factors checklist.

Qkine manufacture team