I personally would never use benebac, the bacterial count is low, around 20 million and it has sunflower oil, sucrose and dextrose in it, sugar and oil do not do well in the digestive tract of the chinchilla, all it will do it feed the bacteria and produce gas as a byproduct. If you are going to use a probiotic get a human capsule and crack it open over something like oats, the higher the BILLION count the better, I use a 18 billion when using it for treatment. The bacteria need to get through the acidic stomach to get to the cecum and do their work, the more bacteria there is the better the chance of it getting there alive.