Cell-Based Exogenous Antioxidant Assay

Our unique new OxiSelect™ Cellular Antioxidant Activity Assay Kit measures the efficacy of antioxidant samples added to cells. This provides a more physiologically relevant environment to study potential antioxidant compounds.

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Antioxidant Enzyme Activity Assays

Oxidative stress is a physiological condition where there is an imbalance between concentrations of reactive oxygen species (ROS) and antioxidants. Superoxide dismutase and catalase are two important antioxidant enzymes that help eliminate ROS from cells. 

Superoxide Dismutase Activity Assay Kit
Catalase Activity Assay Kit, Colorimetric
Catalase Activity Assay Kit, Fluorometric


TECH CORNER: Detecting Superoxide Dismutase (SOD)


Q: Does your Superoxide Dismutase Activity Assay detect all forms of superoxide dismutase?

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For more Frequently Asked Questions on Oxidative Stress click here.

Don't see your question answered on our FAQ page? Contact our scientists here.


Antioxidant Capacity Assay Kits

Although the damage caused by reactive oxygen species is extensively used to monitor the effects of oxidative stress, it is often helpful to evaluate the antioxidant capacity of biological fluids, cells, and extracts against specific radicals or against total ROS.

Hydroxyl Radical Antioxidant Capacity (HORAC) Assay Kit
Oxygen Radical Antioxidant Capacity (ORAC) Assay Kit
Total Antioxidant Capacity (TAC) Assay Kit


Glutathione Assays

Glutathione has many roles within the body including its role as an antioxidant. Our Total Glutathione Assay Kit measures the total concentration of glutathione (oxidized GSSG and reduced GSH), and our Glutathione Reductase Assay measures the activity of this important enzyme that keeps the cell's supply of glutathione in the reduced state.

Total Glutathione Assay

Glutathione Reductase Assay