BioLegend LEAF and Ultra-LEAF Products
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LEAF™ Brochure.
The right tools are critical to completing your assays. Whether you're delving into functional assays in vitro or trying to treat mice in vivo, our LEAF™ (Low Endotoxin, Azide-Free) antibodies are up to the task. To contact our sales team, click on the mouse.
While ELISAs and flow cytometry are useful tools for scientific analysis, in vivo and in vitro functional assays can provide a unique set of answers. For these types of experiments, BioLegend is proud to provide 0.2 micron sterile-filtered, Low Endotoxin, Azide-Free (LEAF™) antibody formulations, which eliminate unwanted effects from endotoxin and sodium azide.

For highly sensitive assays or applications where large volumes of antibody are required, we also provide Ultra-LEAF™ Purified antibodies, which are guaranteed to have less than 0.01 EU (Endotoxin Units)/µg of protein. LEAF™ and Ultra-LEAF™ antibodies can be used on live cells or whole animals for a variety of functional assays, including cell depletion, cytokine neutralization, adhesion blocking, activation, and functional inhibition. BioLegend also provides custom LEAF™ formulations of our purified antibodies upon request.
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