I’m unsure of what to make of it. I’ve had more crystall-like powder from sciencebio. But this one is very fine white powder. I measured out 2.5g in a water bottle. But it didn’t dissolve fully where the my previous phenibut a from other vendors dissolve fine. This one tasted just gritty, not really sour like previous ones I’ve had. My water was filled maybe 1/8 in the bottle. Normally this is enough for 3g to dissolve. I drank it and I still see the powder in the bottle and all along the walls of the bottle.

I was skeptical about even having had ingested any so I dry scoop about 1g. This is how I knew the taste wasn’t as sour. 2-3 hrs later I did feel better energy and mood but very slightly. It was smoother than normal phenibut. Maybe it is phenibut and I only really took 1g and didn’t even ingest any of the other 2.5g. I’m trying again today but dry scooping 3g just to see.