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

Total transparency

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

Protein innovation

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

OSM protein


Recombinant human BDNF

Brain-derived neurotrophic factor (BDNF) is used for differentiation of human pluripotent stem cell-derived neural progenitors to neurons and in cortical organoid generation.

Qkine BDNF is

  • High purity and bioactivity
  • Animal-free
  • Cost-effective


In this weeks #FridayRead Blackford et al. present the first generation of hepatocyte cells from cGMP-compliant hPSC lines – an important advancement in the development of cell therapy alternatives to liver transplantation


Can conditioned media be directly switched for recombinant proteins? R-spondin1 can. Read our technote to see data from @DennisPlenker comparing R-spondin1 conditioned media with recombinant proteins in pancreatic organoids

Qkine tech team

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

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 / University of Exeter
“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

Our scientists are here to help.

Please contact us with questions, product suggestions and ideas.
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