I know a friend of a friend who had one, did more or less what was advertised but lasted a really long time and gave him a headache. They’re totally unregulated though, having tried one before means basically nothing.

Kinda reminds me of a post on /r/trueanon telling people not to take gas station drugs cause they’re designed not to show up on drug tests so if you have a bad reaction its really hard for the hospital to figure out what you even took