ELISA Kits
Measure cytokines, hormones, growth factors and other biomarkers in serum, plasma, cell-culture supernatant and tissue lysates. Choose sandwich ELISA kits for proteins and competitive ELISA kits for hormones and small molecules, for human, mouse and a wide range of animal species. Ready-to-use ELISA test kits ship with standards and a pre-coated strip-well plate.
A sandwich ELISA kit captures the target between two antibodies, so signal rises with concentration. It is the most sensitive choice for proteins such as IL-6, TNF-alpha and other cytokines. A competitive ELISA kit suits targets too small to bind two antibodies, such as cortisol, dopamine and other hormones or small molecules; here the signal falls as concentration rises. Each product page states the format, detection range and sensitivity.
Contents vary by format, but ready-to-use kits typically include:
Start with your target and species, then check the kit is validated for your sample type and that its detection range covers the concentration you expect. To measure several analytes from a small sample, a multiplex ELISA may suit better. Comparing ELISA with ELISpot or antibody arrays? See our guide to immunoassays.
Prices are shown on each product page. For multi-kit studies, core facilities and distributors, contact us for bulk pricing. If the target you need isn't listed, our custom ELISA kit service can develop one.
Our complete ELISA guide covers each step of the protocol, and 101 ELISA troubleshooting tips helps with high background, weak signal or poor standard curves. Our PhD-level team can also help you pick a kit or troubleshoot a run.