Primary Antibodies

Trial Size Antibodies

Test suitability before committing to a full-size purchase

Trial size antibodies let researchers test an antibody's suitability before committing to a larger purchase. Our unconjugated primary antibodies are offered through the Antibody Validation Project (AVP), launched in 2014, which refunds the value of the antibody when you return your results. Look for the AVP logo on individual product pages to take part.

How it works

Test size, full-size confidence

Trial sizes give you a smaller volume of an unconjugated primary antibody so you can run it in your own assay before ordering a full-size pack. Antibodies enrolled in the Antibody Validation Project (AVP), launched in 2014, are marked with the AVP logo on their product page. Submit your validation results and we refund the value of the antibody, regardless of the outcome.

Category benefits

Why use trial size antibodies?

✓ Test before you commit
Check an antibody's performance in your own hands before ordering a larger pack size.
✓ Value-back guarantee
Antibodies enrolled in the Antibody Validation Project refund the full value of the trial size when you submit your results.
✓ Unconjugated primary antibody range
Trial sizes are available across our unconjugated primary antibody catalogue.
✓ Easy to identify
Products taking part in the AVP display the AVP logo directly on their product page.

Not sure which antibody to trial?

Our team can help you choose the right trial size antibody for your target and application, and confirm whether it takes part in the AVP.

Looking for more primary antibodies?

Browse our full unconjugated primary antibody range beyond trial sizes.

 Explore primary antibodies