Tec Labs has been protecting consumers and industrial workers since 1977. We realize that even a walk in the park holds its source of hazards, from poison oak, ivy, and sumac, to insects, to sunburn. No single-layered defense is enough, but The Proven Defense® provides multiple layers, for the highest possible levels of protection. The flagship Tec Labs product, Tecnu®, was originally designed as protection from the fallout of nuclear weapons! Against something as relatively simple as poison oak or poison ivy, it is a nuclear weapon.