I tested these blotters and knew for sure it wasn't acid. I first suspected 5-meo-amt because all my friends told me you could taste the blotter. After I dosed up, I knew it wasn't 5-meo-amt because of the duration and the way it made me feel. My first suspection was DOB, but I thought it lasted a whole day so I really did not know what to think until I found these pictures online. It was sold as acid, but I doubt the person selling it even knows its DOB. Everyone who took it said it felt like acid, but different. The body load was painful for me and the trip lasted around 14 hours. I was not back to baseline until I went to sleep that night. It sucks that these blotter are not LSD because Im sure it is possible to OD on DOB, but I think it would take several blotters. I notmally take 4+ blotters but I was suspicious about these so I only took 2, which was plenty. One friend of mine took 3 and tripped for over 16 hours. He said he felt like he could have taken 4 safely, but I'm sure there is a limit with these. The comeup was about 3 hours and it went in phases throughout the night. I think DOB is a pathetic substitute for LSD and should never be marketed as LSD. Im glad I got to try these blotters, but DOB is way too harsh on my body for me to want to dose up again. Physically, I felt like I had just gotten in an accident. I had several cramps throughout the night and even a few muscle spasms. Be safe with these.