Hmmmm, interesting. I've been looking for a good, affordable one for hubby (he's going to go on the candida diet with me, in case he has any issues) and this sounds really good. Only $39.95 and it lasts a long time! Even for those of us who would take larger amounts, that's still a bargain and nearly all of the bacteria survives the stomach acid, which is really good. I'm going to check them out. Thanks.