- Who manufactures your products?
4Life® manufactures its own products in order to maintain control over quality and availability.
- What is the difference between Transfer Factor and Transfer Factor Plus?
Transfer Factor work as instructors (providing intelligence) to the immune system’s cells. This instruction assists the immune system in recognizing and fighting outside invaders. Transfer factors are immune modulators, which means they are able to support healthy immune function by providing inducer Factors, Antigen Specific Factors and Suppressor Factors. Transfer Factor Plus contains immune boosting ingredients that help strengthen and support a broader range of the immune response than that of Transfer Factor XF alone. More information is available through Dr. William J. Hennen’s book Enhanced Transfer Factor.

