Hi Celina! I don't use them so I wouldn't be the best one to answer this. But if you are lactose intolerant then perhaps soy would be a better choice for you since it does not contain any dairy.
Sometimes after a very hard lift I will drink an ISOPURE (a protein drink), to feed my muscles until I can get to a good meal. A good friend/trainer recommended it to me and I have enjoyed this product.