Do you have enough to try a few weeks cycling on and off? You should just about be able to feel it if it's the right dose for you. I started with 0.1mg and moved to 0.2, and I think that's my dose. The only effect for me is a very subtle uplift of mood about 2 hours after taking it which can sometimes be felt as a little wave as it takes effect. Look into Stamets Stack microdosing if you feel this is effective for you, as I feel this was even better. Need to get more flushing Niacin...

*Edit* Just read the listing and it's a Stamets Stack pre-prep capsule. Seems like you're doing it already! Enjoy!