Studies and Publications

Featured Study

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

4Life Transfer Factor

  • 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 the immune system.* 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.

    Laboratory study reveals that Transfer Factor has the ability to calm down an overactive immune system. Learn more.

    The immunomodulatory properties of Transfer Factor on enriched natural killer cells. Learn more.

    4Life Transfer Factor is clinically proven to activate the immune system in 2 hours. 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.

    How 4Life Transfer Factor can modulate the immune system and Helper T Cell activity. Learn more.

    Salivary IgA in healthy adults is increased by 4Life Transfer Factor. Learn more.

    Method development for the analysis of pbmc-mediated killing of k562 cells by bovine colostrum*. Learn more.

  • Prescribers Digital Reference

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

AgePro

  • In-house studies

    Transfer Factor AgePro exceeds industry standards for NMN supplements in the marketplace. Learn more.

    This white paper explores the effects of 4Life Transfer Factor on natural killer immune cells of older individuals.* Learn more.

    This informal study compared health and longevity biomarkers and survey results from ten individuals before and after 12 weeks of taking 4Life Transfer Factor AgePro.* Learn more.

4Life Transfer Factor Cardio

  • Third-party studies

    Learn about a preclinical study where 4Life Transfer Factor Cardio was shown to protect the heart and boost the immune system. Learn more.

4LifeTransform Burn

  • Peer-reviewed publications

    Laboratory studies showed that 4LifeTransform Burn by itself or with PRO-TF® stimulates fat metabolism and improves body composition.* Learn more.

  • In-house studies

    Thermogenic properties of 4LifeTransform Burn in a 12-week weight management study.* Learn more.

4Life Transfer Factor Collagen

  • 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.

Digest4Life

  • In-house studies

    An exploratory study on human gut microbiome modulation after a 25-day dietary cleansing and detoxification supplement regimen.* Learn more.

Gold Factor

  • Peer-reviewed publications

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

    Clinical Study Demonstrating Gold Factor Effectively Improves Joint Health. Learn more.

  • Third-party studies

    Clinical Study Demonstrating Gold Factor Effectively Improves Joint Health. Learn more.

    Gold Factor Shows Potential Anti-Aging Benefits* Learn more.

Transfer Factor Lung

  • 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.

Pre/o Biotics

  • 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.

PRO-TF

  • Peer-reviewed publications

    Laboratory study that evaluated the effects of PRO-TF ingredients on markers of muscle growth, appetite, and fat metabolism.* Learn more.

    Laboratory study comparing amino acid absorption from hydrolyzed versus concentrated whey protein.* Learn more.

Renuvo

  • Peer-reviewed publications

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

RiteStart

  • 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.

äKwä

  • Peer-reviewed publications

    A clinical study exploring the skin health benefits of the aKwa Skincare System.* Learn more.

  • In-house studies

    A clinical study exploring the skin health benefits of the aKwa Skincare System. Learn more

enummi Toothpaste With 4Life Transfer Factor and Postbiotic

  • In-house studies

    Exploratory study shows oral health benefits of new and improved Enummi Toothpaste. Learn more.