Hi guys

23 yo
183 cm
83 kg

Atm in full bulking..lil bit dirt lol..17% bf
training since 1.5 years and for the moment 100% natty..want to get my head full of knowledge about gears.
i've heard a lot about the mild side-effect of Var..and my question is, is possibile with a daily dose of 20-30mg (i think is a medium-low dose, i'm right?) that my natural test production will drop? PCT with this gear is 100% needed?
ty for your answers, and soz for my bad english
have a nice day