4Life Transfer Factor® Classic

$50.99 

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4Life's original colostrum-derived 4Life Transfer Factor product for daily immune system support*

Primary Support: Immune System, Overall Wellness*

•Supports the immune system’s natural ability to recognize, respond to, and remember potential threats*
•Boosts natural killer (NK) cell activity*1
•Contains Certified 4Life Transfer Factor with UltraFactor XF®
• Contains certified 4Life Transfer Factor® to Raise Your Immune I.Q.®*

4Life Transfer Factor Classic has been recognized for years as the best colostrum-based transfer factor product for daily immune system support. It contains our original UltraFactor XF® ingredient for safe and proven immune system support.*