Give superior immune support a “tri!” This advanced formula helps your immune system recognize, respond to, and remember potential health threats, while offering more broad-based immune system support through a proprietary combination of 4Life Transfer Factor^® (immune messenger molecules) from cow colostrum, OvoFactor^® from chicken egg yolks, and NanoFactor^® mini molecules. Recent independent laboratory studies show that 4Life Transfer Factor^® Tri-Factor^® Formula bolsters Natural Killer (NK) cell activity in the presence of a health threat, while activating a variety of other immune system cells, such as B cells and T cells.^† Take two (2) capsules daily to educate, enhance, and balance your immune system.* 4Life Transfer Factor Tri-Factor Formula comes in vegetable-derived capsules.