In 1949, Dr. H. Sherwood Lawrence made a revolutionary discovery while studying tuberculosis. He determined that an immune response could be transferred from a donor to a recipient by injecting an extract of white blood cells (leukocytes) from a previously infected, now healthy, subject into a newly infected patient. He found that this extract contained a factor capable of transferring immunity. He named the substance "transfer factor."

Originally, blood was the only source of transfer factor. Dr. Lawrence's discovery came in the midst of the discovery and use of antibiotics. Transfer factors have been used throughout the antibiotic age in different regions of the world such as China, Poland, Italy and others, but never have been available commercially in the past due to the lack of technology. It was not until the mid 1980's that two researchers came up with the idea that transfer factor may also be present in colostrum (mother's first milk). The confirmation of this discovery was awarded a patent in 1989, and colostrum is now the best source of transfer factor.

In the fifty years since Lawrence's pioneering work, an estimated $40,000,000 has been spent on research resulting in over 3,000 published scientific papers documenting the benefits of transfer factors. The world's leading scientists and physicians have established the safety and remarkable immune system benefits of transfer factors. The processing methods that allow for large-scale extraction of transfer factors have only recently been perfected and a commercial product has only been available within the last few years.



4Life™ Research is dedicated to the continued research and the potentials of transfer factors. Since the introduction of our flagship product Transfer Factor™, we have continued to provide for immune support by introducing Transfer Factor Plus™ in April of 1999 and it has been very well received. In April of 2000 4Life™ brought TF RenewAll™, TF Kids™ and Transfer Factor Plus™ Canine and Feline Formulas to the market. In 2001, the Feline and Canine Formulas were greatly improved, to kick off the new Animal Health 4Life product line which started with Canine Complete™, Feline Complete™, Equine Performance and Show, and Animal Stress Pack. 4Life was as busy as ever in 2002, when the Feline and Canine Formulas were phased out, and more brand new products including Transfer Factor Immune Spray, Transfer Factor Chewable and TF Cardio were introduced. As well, in 2003 Livestock Stress Formula was added to the Animal Health 4Life Product Line.

The 4Life™ Transfer Factor™ Family is changing lives in North America, New Zealand and Japan. Our hope and desire is for continued success in strengthening the immune system as we take Transfer Factor™ to the world!

* Disclaimer: All material provided in this web site is provided for educational purposes only. Consult your own physician regarding the applicability of any opinions or recommendations with respect to your symptom or medical condition. Statements about products and health conditions have not been evaluated by the U.S. Food & Drug Administration.

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