Nano factors added to Transfer factor -> Tri factor formula

Q: What is the "tri-factor" in the product?

A: Nano factors (the extremely small factors identified to have beneficial effects in terms of balancing the immune system) was introduced into all the four products - Transfer factor advanced formula, Transfer factor Plus Advanced formula, Rio vida and Chewables and launched at the convention at Salt Lake City in 2007. Hence these products were hence forth all called "Tri factor". These nano factors are from bovine colostrum.

Q: What is the difference between Transfer factor Advanced formula (with tri-factor formula) and Transfer factor Plus (with tri-factor formula)?

Answer here.