1g and pretty much no effects

Yo, so I made a post 2 days ago saying taking 500mg didn't cause any effects, today I tried 1g and drank a coffee like an hour after and didn't feel much. I was a bit more social and in a pretty good mood but I'm not sure if it was the phenibut.

So I'm wondering if my phenibut is fake or smth. I bought it from biolab, do some of y'all know if it's legit? It's either fake or I should really up the dose to feel it, idk. Maybe try splitting the dose, take 1g then another 2 hours later.

Sorry if this post is annoying and you already seen shit like this a thousand times but I could use some advice. Are the pills fake or should I take them differently?