Testing fentanyl for purity

[Dosentmatter903]

Ordered some SN but for some reason can't help but feel that I may or may not have just given my money away to some website...so here goes plan B. Since we've all heard how fentanyl can be super fatal, and seeing as how readily available anywhere you go I'm seriously considering it. Honestly I feel like I should have gone that way to begin with cuz I would have already had what I needed...but also since we cant eyeball the purity I was wondering If there was any way I could test for purity. I looked up and found the testing kits but from what I understand those only test for the presence of fentanyl. I kinda just want to take maybe 20 or 30 pills and be done with it, but would mad af with my self if I somehow pulled thru