Neogen’s key products for immunoassay production include our popular K-Blue® TMB substrates and K-Gold® PNPP substrate. Our broad range of substrates and in vitro diagnostic reagents offer immunoassay kit manufacturers the advantage of purchasing multiple formulations from one supplier, allowing for larger discounts, uniform delivery schedules and simplified purchasing procedures. Solutions Substrates & Reagents Neogen’s substrates are available for use with horseradish peroxidase (HRP) and alkaline phosphatase (AP) based microwell and membrane assays. The substrates offer easy-to-use formats with excellent sensitivity, stability and lot-to-lot consistency that make them ideal for inclusion in commercial immunoassays. Disposable Gloves Neogen gloves are available in vinyl, latex, and the ever-popular nitrile styles. These gloves provide superior protection, durability and sensitivity at an affordable price. Most gloves have a fully textured palm and fingers, allowing a strong grip for both wet and dry applications. Custom Filling and Packaging Allow us to package substrates and reagents in custom bottle sizes and volume fills to meet your specific packaging requirements.