Testosterone ELISA kits are assays designed to detect the steroid hormone testosterone. Secreted by the testes, it acts as the primary sex hormone in males and plays a role in the development of secondary sexual characteristics and reproductive tissues. In females, it is secreted in smaller amounts by the ovaries and adrenal cortex. Testosterone can be taken as a synthetic medication for hormone therapy and physical development. Visit the supplier page for more information about detection range and reactivity.