• UltraFactor™—A proprietary concentrate of ultra-filtered 4Life Transfer Factor® proteins and other peptides from cow colostrum
Made in the USA with quality ingredients from around the world.
Product Specifications
Serving Size: Three (3) Capsules
Servings Per Container: 30
I am super happy to know about and use 4Life® products.
Reyna Salinas
†P. Vieira-Brock, A. Andersen, B. Vaughan, and D. Vollmer. 2019. Method development for the analysis of PBMC-mediated killing of K562 cells by bovine colostrum and various fractions. Immunology 2019.