4Life Transfer Factor Immune Spray combines the immune-boosting power of UltraFactor and NanoFactor extracts with additional ingredients that promote immune system function, including colloidal silver, zinc, and lactoferrin. This easy-to-dispense throat spray also contains soothing aloe vera and marshmallow*

Main Features

•  Supports the immune system’s natural ability to recognize, respond to, and remember potential health threats*
•  Increases the number of immune cells within the body, promoting a stronger, more resilient immune system*
•  Contains no artificial colors, flavors, sweeteners, or preservatives
•  Proudly made in our NSF cGMP certified manufacturing facility

Primary Support: Immune System*

Key Ingredients

• UltraFactor^®—A proprietary concentrate of ultra-filtered 4Life Transfer Factor^® proteins and other peptides from cow colostrum
• NanoFactor^®—A proprietary concentrate of nano-filtered cow colostrum
• Colloidal silver
• Zinc