This product definitely works. I've used it for a month now and can see results.No need to spend money on the 4Life transfer factor, this one works just as good for the fraction of the price.
Posted by chacho on July 12 2011 | Verified Purchase
Very nice product for general health maintenance.I use together with BetaRight Beta Glucans.
Posted by iHerb Customer on January 25 2011 | Verified Purchase
This is the best immune support!
Posted by iHerb Customer on April 1 2009 | Verified Purchase
A good price when compared to the MLM prices out there! We use it as an immune booster when needed. D. Engle
Posted by iHerb Customer on January 17 2014 | Verified Purchase
Posted by iHerb Customer on March 6 2012 | Verified Purchase
Seems to be doing the job. It does seem very similar to 4Life TF which I took for some years. Both make my skin dry.
Posted by iHerb Customer on April 15 2010 | Verified Purchase
all the supplements of source naturals are excelent i will continue buying in the future
Posted by Romero on December 20 2012 | Verified Purchase
I'm passing through a time with weak immune system, so I tried this but didn't noticed any improvement. I think I should stick to the basic: Zinc, Ashwagandha, Glutamine and Vit C.
Posted by iHerb Customer on February 15 2009 | Verified Purchase