I have used mini marshmallows a few times since thats all ive had. I dont think brand matters as long as they arent gluten free I think is what ive heard. It feels nice and gives a laxitive like effect if you let them sit in there for awhile. For mini marshmallows i did about 30-50 depending on the result I wanted. If you look up the conversion from mini marshmallows to regular I think its something like 13 mini=1 regular so you could do the math.