Looking Glass

LookingGlass.fit, Inc. is a U.S.-based supplier of research materials that combines an online catalog with a free educational research library. The company provides research-grade peptides and other materials for qualified laboratory use, including small molecules, fragment and analog peptides, copper-chelate peptides, short peptides, and additional research categories. Its public catalog lists product identity details such as compound names, CAS numbers, formulas, and molar mass where assigned, along with prices and available pack sizes. Customers can browse without an account; a free research account is required at checkout.

LookingGlass states that its lots are independently tested in the United States and that a certificate of analysis is available for every listed compound. It also reports HPLC purity verification and offers tracked shipping, with free U.S. shipping on orders over $250. The research library features plain-language overviews and videos discussing published studies, including what researchers measured and what remains unknown. This content is educational, not medical advice.