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Shorter lead times, exceptional performance, and industry-leading technical support.

Praesto Protein A and Ion Exchange resins meet the rigorous performance, quality and regulatory standards necessary for modern mAb purification processes. Manufactured with patented Jetting technology, all Praesto resins are supplied with uniform particle sizes, short lead times, and minimal environmental impact.  Used by leading biopharmaceutical manufacturers and CMOs across the globe, Praesto are currently the resins of choice for FDA-approved commercial mAb manufacturing processes, and hundreds of clinical trials.