4Life’s best-selling immune system product! 4Life® Transfer Factor Plus® Tri-Factor® Formula combines the power of Tri-Factor® Formula with a proprietary super-mushroom blend (shiitake, maitake, agaricus, and cordyceps) and zinc to help your immune system more effectively recognize, respond to, and remember potential health threats. Recent independent laboratory studies show that 4Life Transfer Factor Plus 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, T cells, and macrophages.† Take four (4) capsules of Transfer Factor Plus to reach your daily dose and maximize immune health benefits: a daily dose (600 mg) of 4Life Transfer Factor is clinically proven to activate the immune system within two hours.*1 4Life Transfer Factor Plus Tri-Factor Formula comes in vegetable-derived capsules.
Made in the USA with quality ingredients from around the world.
†A. Andersen, P. Vieira-Brock, B. Vaughan, D. Vollmer Method development for the analysis of PBMC-mediated
killing of K562 cells by bovine colostrum Journal of Immunological Methods Volume 499, December 2021.
Studies and Publications
†Vetvicka V, Vetvickova J (2019) J Nutr Health Sci 6(3): 301
†Vetvicka V, Fernandez-Botran R (2020) Int Clin Pathol J. 8(1):1
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*THESE STATEMENTS HAVE NOT BEEN EVALUATED BY THE FOOD AND DRUG ADMINISTRATION. THESE PRODUCTS ARE NOT INTENDED TO DIAGNOSE, TREAT, CURE, OR PREVENT ANY DISEASE.
^In a preclinical study.
1 Yu, L.; Iloba, I.; Cruickshank, D.; Jensen, G.S. Feasibility Trial Exploring Immune-Related Biomarkers Pertaining to Rapid Immune Surveillance and Cytokine Changes after Consuming a Nutraceutical Supplement Containing Colostrum- and Egg-Based Low-Molecular-Weight Peptides. Curr. Issues Mol. Biol. 2024, 46, 6710-6724.
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