Hello hello, So I got some very good phenibut from one of the best overall rated sources. And its the best product ive ever had so far out of all the other sources. I ended up getting bad heartburn the 3rd time I took it. I rarely ever get heartburn or indigestion so I figured it had to be from the phenibut. I read online about how phenibut is really acidic and blah blah blah. Well I wanted to see for myself. So I dissolved 500mg of phenibut in about 2 floz of water. I then tested the solution with PH dip stick 2 times. Both times it came out at 7(neutral) maybe it was a little bit under like at 6. This is the only batch I ever tested and tbh idk if it is hcl or faa because it doesnt say on the site or the bag. Anyway yea I was surprised because everyone said how acidic it is but the people who claim how acidic it is never mentioned anything about testing it themselves. So I would like to hear some feedback from you guys or I want you guys to do your own test and comment your results Thanks!!