Studies and Publications

Featured Study

4Life Transfer Factor is clinically proven to activate the immune system within two hours. Learn more.

Peer-reviewed publications

Safety assessment of long-term use of 4Life Transfer Factor using a variety of studies recommended by regulatory authorities. Learn more.

Beneficial impact of various compositions of transfer factors on our immune health.* Learn more.

Positive effects of cow colostrum and egg-derived transfer factors Part 1: Non-specific immunomodulation.* Learn more.

Positive effects of cow colostrum and egg-derived transfer factors Part 2: Antigen-specific immunomodulation.* Learn more.

Development of an immunological method to evaluate the efficacy of 4Life Transfer Factor against health threats.* Learn more.
Third-party studies

Safety assessment of a single oral high-dose of 4Life Transfer Factor^® Tri-Factor^® Formula and 4Life^® Transfer Factor Plus^® Tri-Factor^® Formula. Learn more.

4Life Transfer Factor is clinically proven to activate the immune system within two hours. Learn more.

Measuring how much 4Life Transfer Factor^® Chewable Tri-Factor^® formula is safe for consumption.* Learn more.

4Life Transfer Factor suppresses an overactive immune response.* Learn more.
In-house studies

Pilot study to assess the effectiveness of a user-friendly instrument in quantifying IgA in human saliva. Learn more.

Pilot study to obtain a normal range of salivary IgA by using a new, user-friendly instrument for humans. Learn more.
Prescribers Digital Reference

Description of Transfer Factor products and benefits from a long-trusted source. Learn more.

Peer-reviewed publications

A review article on natural ingredients that can benefit the skin.* Learn more.

Efficacy of 4Life Transfer Factor Collagen on skin hydration, firmness, and wrinkles in an 84-day clinical study and telomerase activity in an in vitro study.* Learn more.
Third-party studies

Clinical study shows 4Life Transfer Factor Collagen improves skin hydration, firmness, and fine lines and wrinkles in healthy adults.* Learn more.

Peer-reviewed publications

Evaluation of the protective effects of 4Life Transfer Factor Lung against the negative impact of PM2.5 pollution exposure. * Learn more.
Third-party studies

Evaluation of the protective effects of 4Life Transfer Factor Lung against the negative impact of PM2.5 pollution exposure.* Learn more.

Peer-reviewed publications

Laboratory study shows that four weeks of taking Pre/o Biotics has beneficial effects on gut integrity and microbiome health.* Learn more.

In vitro studies examine different combinations of prebiotics and 4Life Transfer Factor on probiotic growth.* Learn more.
Third-party studies

A collection of cellular and pre-clinical studies reveal the best combination of prebiotics, probiotics, and 4Life Transfer Factor for gut microbiome health.* Learn more.
In-house studies

Discovery and validation of prebiotic properties of ultra-filtered cow colostrum and chicken egg yolk*. Learn more.

Peer-reviewed publications

Effects of Renuvo on the expression of oxidative stress markers while eating a high-fat, high-sugar diet.* Learn more.

Peer-reviewed publications

Clinical study shows RiteStart improves several markers of general and immune health. Learn more.
In-house studies

Positive influence of RiteStart as a foundational component in a 12-week personalized nutrition program.* Learn more.