Reagents For the Life Sciences Industry | NEB. NEB is a leader in the discovery and development of molecular biology reagents. Restriction enzymes, polymerases, competent cells,sample prep for NGS, and more.. NEB, New England Biolabs, molecular biology, life science reagents, restriction enzymes, endonucleases, enzymes, polymerases, modifying enzymes, nucleic acids, DNA, RNA, PCR, qPCR, RT-PCR, Competent Cells, Protein Tools, sample preparation, next generation sequencing, genome editing, glycobiology, synthetic biology, RNA analysis, cloning, gene expression, cell imaging, E. coli strains, epigenetics