I dunno either man, just going on what a few ppl i know have said, they all love the gear, rate it very highly, way nicer than the local food they can get but it packs an awful rattle, My mate thinks it's prob some cut in the local gear that keeps them ticking by whereas the dn gear gives a proper good hit but doesn't have legs.
The stuff i get from the vendor i use has been labtested, cant remember the exact % but there were no active cuts, think it was a caffeine/mannitol/paracetamol cut (which is pretty standard so it seems) It's defo nice though, best i've had on the darknet bar one dutch guys stuff which was labtested at 91% pure!! that shit was unreal, so so strong, absolutely coated the tooter too, had to brush my teeth after a smoke as id literally have bits of gear stuck to the enamel!