Mesterolone ( Proviron ) may well the singularly most undervalued AAS we have..
Proviron has many roles.. but this one is interesting..
Two studies that look at AAS ability to increase the number of SCs within skeletal muscle
1, Sustanon 
2, Mesterolone ( Proviron )
I am not saying you should take Proviron for this effect..

Just don’t underrate what it can do in ” total” given the stress it creates..


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