I read this whole thread a few days ago. There is some good info and some misconceptions. Colloidal Gold can come in an array of colors. The color is contingent to particle size. Particles 0.5nm to ~20nm reflect the color red of the visible light spectrum. So that pretty much kills that tired b-b, basket ball and surface area story. So the effects you claim from that product you must also feel from tap water. Though you try there is no excuse for 6100% markup for Colloidal Gold that comes in a brown bottle to hide its weak gold content. If I went to school with Bill Gates would make me a computer expert?