As far as I know clen pills come in 20mcg & 10mcg...
Not even sure if 4/5 weeks of Var would do anything but waste your money
Also I believe most guys run it along with something else usually a injectable... I like var myself but Im in late 30's and stack it with other stuff
But bro your 20 you dont need clen.. Further you dont even need to be juicing..Your Hormones and metabilism is good the way it is