This stuff (powder) stops bleeding in about 15 seconds.
Bought it at Cabela's. It's called QR powder. It has gelatin and some type of salt in it. Part number# HG 51-7355 Costs 9.99 for one pack. Should come in handy when you accidentally whack off your left leg when chopping kindling. This will effectively keep you from wrecking a perfectly good camping trip with an unplanned trip to town and a 27 hour wait in the nearby ER with your leg in hand.
I know the military and I think some EMT's might be using it.
Figured some of you guys might be interested.
Bleed on....