Hi Margaret, >> I'm sorry, but since you're selling the product, this sounds a lot like spam.<< Like you, I am very skeptical about this new Bio whatever. Tomatoes have gotten along quite well in the past without it. There seems to besome new flash in the pan every few years, doesn't there? If someone wants to pay a recognized expert to grow plants with and without this "miracle worker" I would like to see an INDEPENDANT review by an uninterested source, NOT one of the garden rags with which we are beset. Until that time, I remember tales of the days when bunko pedlers and snake oil salesmen rode their wagons from town to town. Good gardening, Chuck Wyatt