Masteron or primo what is your experience?

[Machforce1]

Primo crushed my estrogen until I dialed in my ratio. 650 test and 400 primo had me hovering right around 21 E2. Mast didn’t do much of anything for my E2 level but increased my Free Test.

Mast does the same for me in that it raises free test from about 2.1% to 3.5% which is huge. I would argue that neither mast or primo pack on very much muscle on their own, however, they both allow you to run your test higher and more efficiently which indirectly does help you pack on more lean mass with an added e2 control/mitigation bonus.

 

[JG40]

They are both good.
I get very similar results from both of them. Slightly fuller on primo Slightly harder on mast.
As it stands today neither is easy to get ahold of so use what you can get. Mast does nothing for my estrogen primo will lower it a bit.
Personally unless I am pushing to get real lean ill take eq over either of them.

 

[Machforce1]

They are both good.
I get very similar results from both of them. Slightly fuller on primo Slightly harder on mast.
As it stands today neither is easy to get ahold of so use what you can get. Mast does nothing for my estrogen primo will lower it a bit.
Personally unless I am pushing to get real lean ill take eq over either of them.

Lots of guys seem to prefer EQ over either mast or primo for putting on mass. Never tried it, but it’s cheap and plentiful, so why not right?