This is a great product! I love it because I can eat dairy products again! Lots of products have dairy, so it's hard to have a perfect dairy free diet. But with this product, I can eat anything with dairy. Before I knew of this product, after I ate dairy products, I had horrible, really painful stomach aches, along with tons of diarrhea, which was very unpleasant. Now, that's all over! Well, almost. It works for everything except plain, regular, milk with lactose. I mean, I don't get unbearable stomach aches and diarrhea, but I happen to get stomach aches, and a little bit of nausea. The product is a small pill, which is sometimes challenging to swallow. I mean, I can sometimes, but sometimes, it takes a while, which is inconvenient. There's the chewable, but it has a horrible vanilla flavor that gives me nausea. I guess the pill is overall, a satisfying product. I use it almost everyday, in fact. The pill's effects lasts 45-60 minutes.