- How long is the transfer factor available in the colostrum?
The greatest concentration is during the first day, and it sharply drops off the third day. We test each batch for bioactivity.
- What is the difference between transfer factor and colostrum?
Colostrum contains water, vitamins, minerals, protein, fat, carbohydrates, antibodies (immunoglobulin), and a little bit of human growth hormones and transfer factors. Store milk can provide water, vitamins, minerals, protein, fat, and carbohydrates. Antibodies in the cow's colostrum are specific to a cow therefore not beneficial. Human growth hormone is not a real factor here due to the minuscule amount contained in colostrum. What is important are water and transfer factors. Colostrum is good. It's just that we have found a way to extract the most important component, transfer factors. One would have to consume approximately 45 grams of colostrum to get the transfer factor activity in just one daily maintenance dose of 4Life Transfer Factor® (2 small capsules)

