The cell-based potency assay your program needs — validated, reproducible, delivered in weeks.
SBH Sciences is the world leader in measuring the biological activity of cytokines and growth factors. Choose from 360+ validated bioassays, or we develop and validate a custom assay for your target in under two weeks — with a full written report.
- 360+
- Validated bioassays
- <2 wk
- Custom turnaround
- 300+
- Biotech clients
- 28 yrs
- Of assay expertise
Get a quote on your assay
Tell us your target and readout. A scientist replies within one business day.
No spam. Your details go straight to our scientific team.

Trusted by 300+ biotechnology & pharmaceutical companies











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Sound familiar?
How it works
We run cytokine and chemokine cell-based bioassays as a service. You send the sample and the question — we deliver clean, quantitative potency data you can build a decision on.
1 · Scope your assay
Tell us your target and readout. If it's one of our 360+ validated assays, we start immediately. If not, we design a custom assay for your molecule.
2 · Develop & validate (if needed)
For a new target, our scientists develop and validate the assay — typically in under two weeks — under strict confidentiality.
3 · Run & measure
We run your samples using a non-radioactive colorimetric method equivalent to the ³H-thymidine incorporation assay, across the species you need.
4 · Report & decide
You receive a written report with methods, results, and conclusions — data you can put in front of your team or regulators.

The specifics
The hard facts scientists ask for before they commit.
- Assay menu
- 360+ validated bioassays
- Custom turnaround
- Under 2 weeks
- Species
- Human, murine, rat, bovine (+ more)
- Method
- Non-radioactive colorimetric
- Cell lines
- ~400 human cancer lines
- Deliverable
- Written report + data
What you get
Every engagement delivers:
- Quantitative, reproducible potency data
- A written report with full methods and conclusions
- Assays across multiple species from one lab
- Strict confidentiality on your targets and results
- A direct line to the scientists who ran your assay
Trusted on IND-enabling programs
SBH ran the mechanistically intricate oncology assays behind the screening of thousands of compounds for Karyopharm Therapeutics — whose program produced XPOVIO® (selinexor), an FDA-approved drug.
Frequently asked questions
How fast can I get results?
Assays already in our menu run in days. New custom assays are developed and validated in under two weeks, including a written report.
Which species do you cover?
Human, murine, rat, and bovine are standard, with canine, equine, feline, porcine, rhesus macaque, and swine available on request.
What if my target isn't on your list?
We continually develop new assays. Send us your target and we'll scope a custom assay under strict confidentiality.
What exactly do I receive?
A written report with methods, results, and conclusions, plus the underlying data — everything you need for an internal or regulatory decision.
Ready to move your program forward?
Get a fast, no-obligation quote from our scientific team — or explore the full range of SBH Sciences services.
