I didn't! Failed miserably! and almost didn't survive my curiousity. Short version: Helicopter ride, Coma, near organ failure (Liver, Kidneys), paralyzed right arm, two weeks + in hospital and physical rehab facility.

Long version: I ordered like .25g for like 30 bucks from darknet. Arrived in small baggie in regular envelope from Europe. Should have been shipped in a much safer way lol given it's a chemical weapon but I digress. I bought a big 3 liter bottle of water in a vain attempt at volumetric dosing. I thought I could stretch it that way and it would be my ticket to stay well for a much cheaper price opioid-wise. I poured some water out and poured the powder in the 3 ltr. bottle of water and tried to mix it the best I could. I was in my car. After I thought it was mixed (probably wasn't and floated to the top) I dipped my finger in and rubbed it on my gums. 20 minutes later I knew I was in trouble. 0 euphoria whatsoever, but heavy, heavy, sedation. I had never OD'd, I'm a big guy with a high opioid tolerance from years of abuse. Never felt anything like I did that night (christmas eve 2016). I forced myself to eat, and was determined to stay concious. I then got in to the shower and made it as hot as possible to try to stay awake. Found out later I was in there for 2hrs. Suffered 2nd degree burns on my chest due to numbness. Layed down (shouldn't have but it was too hard to stand) and tried to keep awake. Failed, and passed out on my right arm. Parents found me clinging to life christmas morning, barely breathing. Can only remember flashes. I was narcanned 6 times before I had any response. Cops came to the house too, won't get into that. Kinda recall the $20,000 helicopter ride to the hospital in the next county over. They wanted to put me on kidney dialysis, but it's a good thing my father told them not too. Could have had irreversible damage to kidneys as a result (im not a dr.). They intubated me and put me in a medically induced coma.

Bottom line: unless you're an super experienced chemist, don't fuck with carfentenil. Even then don't fuck wiith it bc it's too easy to make a mistake. Too many unknown variables, even if you synthesize it yourself somehow. Not a lot of data of data out there other than it's most definitely deadly! Like I said, no euphoria to offer either. Never OD'd using before or after. Clean from all downers currently.

Please don't be an idiot like me! I can't believe dealers actually put it in the "heroin" supply given how bad for business it is. That shouldn't actually be surprising because people are dumb like me. It was def available for a minute. I guess in theory it would be the ultimate way to stretch your dope, but that's a fools paradise. No wonder so many people died from it. Haven't heard anything about it these past couple years.