Hmm. I dunno if the burn is cause of the caustic nature of the chemical itself, the acidity/basicity of the prepared crystals or simply due to how SHARP the tiny crystals are even when broken apart and crushed repeatedly over and over. A small line turns into 2-3 times its size when crushed over and over, goes from looking like a line of meth to normal k or coke but still burns. I'm gonna do some trials with the rest of the stuff (still have about 2-300mg left), gonna dissolve in a small amount of water then evaporate and scrape and sniff, and also gonna test pH. I personally wouldn't IM this stuff though it just seems completely unnecessary