Insulin-Transferrin-Selenium 100X is a concentrated supplement blend designed to support serum-free and chemically defined cell culture media. This formulation contains insulin, transferrin, and selenium, each playing a vital role in promoting cell growth, metabolism, and antioxidant protection.

Insulin facilitates glucose uptake and anabolic processes, transferrin acts as an iron carrier essential for cellular respiration and proliferation, and selenium serves as a key cofactor for antioxidant enzymes, protecting cells from oxidative stress. This supplement is widely used in stem cell culture, hybridoma production, and various mammalian cell culture applications requiring defined and consistent growth conditions.