Transfer Factor Immune Support

Our ultimate immune system product that boosts natural killer cell activity and contains a proprietary mushroom blend and zinc to support the immune system*

Top-selling liquid supplement with 4Life Transfer Factor^® and antioxidants*

Top-selling liquid supplement with 4Life Transfer Factor^® and antioxidants*

Immune system product with 4Life Transfer Factor^® from cow colostrum and Tri-Factor^® Formula from chicken egg yolks*

Premier daily supplement pack for men featuring our top-selling 4Life^® Transfer Factor Plus^® Tri-Factor^® Formula and zinc for immune system support*

Premier daily supplement pack for women featuring our top-selling 4Life^® Transfer Factor Plus^® Tri-Factor^® Formula and zinc for immune system support*

4Life's original immune system support supplement*

Immune system and antioxidant benefits in single-serving powder packs*

Vitamins, minerals, and immune system support for kids ages 2 and up, featuring 4Life Transfer Factor^® Tri-Factor^® Formula*

Immune system support in a citrus cream chewable tablet*

Mouth and throat spray with colloidal silver and zinc for immune support*

Immune system and antioxidant benefits in a refreshing edible gel*

Topical 4Life Transfer Factor^™ gel

Mouth and throat spray with colloidal silver and zinc for immune support*

Resealable packets of Transfer Factor Classic