400 per vial, bought 3. Seems a little high still. 550 for the molly which was 7 grams. It's around 100 if I had to guess I'd say 80-90 with some LSD still on the side of the vial which can still give a very powerful trip. If you mix it with alcohol it becomes soluble and theoretically equal amounts should be mixed in the solution. So 1 notch is aprox 1.66mg~. Definitely works great though.