I was a first time clen user recently lke u and I did something lke this
day 1-3:50mcg
day 3-5:75mcg
day 5-10:100mcg
and maxed out at 125mcg per day.
I used keto w/ it so my receptors were ok, and I am still on it and it is still very effective, I'm using it for 10 weeks, I'm on the 5th week...