Lead Sciences is a supplier of research chemicals and a provider of scientific services, serving researchers and scientists through an online catalog and custom support. The company offers more than 100,000 active chemicals for research use, including inhibitors, agonists, and products organized across areas such as apoptosis, DNA damage, stem cell research, neuronal signaling, immunology, epigenetics, cell cycle studies, HIV protease, and metabolic enzymes. Its catalog also includes biochemical reagents and compounds related to GPCR/G protein, inflammation, and the MAPK/ERK pathway.

Beyond product sales, Lead Sciences lists services in assay work, preformulation, formulation development, analytical services and research, and contract development. Its other offerings include biotech and bioinformatics services, hydrogen peroxide, custom synthesis, drug discovery, gene expression analysis, and single-cell sequencing. The website presents the products as high-quality and intended for research use only. Customers can browse product categories, review shipping information and policies, or contact the company directly. Lead Sciences is based in Europe, as reflected in its contact telephone number and the euro pricing option displayed on its website.