Hi i have been taking Clen for 4 days now and have not experienced any side effects... Is this normal? Is my Clen under-dosed? Today i took 120mcg and still didnt notice anything?

Is it possible i can go higher? It is Liquid Clen and i have heard that this maybe not as strong as others? A guy in the gym told me i can take as much as my body can handle even as much as 300mcg daily???

Can someone give me some info on this i would greatly appreciate it!

Thanks