connoristiny
New Member
Are they essentially interchangeable? Is it worth spending the extra money for primo?
MESO-Rx
Anabolic Steroids
Primo vs. Mast
- Thread starter connoristiny
- Start date
Type-IIx
Member
Mast is just a bit more androgenic, might benefit strength slightly greater vs Primo. They're virtually interchangeable.
lukiss96
Member
What's better as cruise add on or both are not good idea?
Type-IIx
Member
I think either one is a fine idea for this (IMO better than upping the test), just avoid the temptation to turn your cruise into a blast.
connoristiny
New Member
Theoretically, if you want to keep your test dose constant (but lower E2), is it better for your health markers to increase your primo/mast or AI dose?
The two options would have different effect. you’ll have to try each as see which you prefer because your desired outcomes are probably different to mine.
I want to minimise weight gain while increasing my ability to recover from resistance exercise, so adding 100mg of mast makes more sense than upping my test dose from 200mg to 300.
I want to minimise weight gain while increasing my ability to recover from resistance exercise, so adding 100mg of mast makes more sense than upping my test dose from 200mg to 300.
Chuck Spears
Banned
I'm cutting/cruising on 100 test/100 mast because why not.
Cant really say if its doing anything. I think its a clinically insignificant dose.
Hightower
Member
What are your goals?
Hightower
Member
I think masteron will be more relevant in this matter
connoristiny
New Member
Bulk/Pack on Size
Test then, I assume
Test base, then add primo or mast
Rido
Subscriber
Max out to comfort doseage of test without an AI. Throw in in mast or primo to fill in. Obviously total AAS mg will depend on experience.
This is spot on!!
Just re-reading this. Presumably another difference @Type-IIx, is that Masteron disrupts signalling at the oestrogen receptor whereas Primobolan doesn’t?
Rido
Subscriber
Mainly for breast and it does feel like the skin too.
Primo does reduce e2 for some of us. .
My understanding is that Masteron negates E2 in two different ways. It has an effect similar to proviron, of occupying aromatise and preventing testosterone’s conversion. It also has a disruptive effect on genomic transcription at the E2 receptor.
Come to think of it I’ve not read any research to back this up. Could just be hearsay. I’m off to read the literature.
Come to think of it I’ve not read any research to back this up. Could just be hearsay. I’m off to read the literature.
AbstractMind
Member
Primo drops e2 a lot more then Masteron in my experience. Also screws with my libido and my head a bit. Most faked steroid available, real stuff you will feel it at even 200-300 mg per week.
There’s a suggestion that the following study presents evidence that Masteron “show some secondary anti-estrogenic effects” but I don’t have access to the paper and there’s no published abstract:
Marinov L., Tsekova V., Koinov K. Drostanolone propionate (masteril) in disseminated breast cancer in women. Immediate results. Khirurgiia (Sofiia) 1987;40:80–86.
Then there’s this paper:
Günther Trams, Effect of drostanolone propionate on the binding of oestradiol and dihydrotestosterone by normal and malignant target tissues, European Journal of Cancer (1965), Volume 13, Issue 2, 1977,
“Drostanolone was found to compete with androgen binding sites but not with oestrogen receptors. Therefore it is unlikely that the growth inhibitory effect of drostanolone propionate in human breast cancer is mediated through interaction with oestradiol binding proteins as suggested earlier by other authors.”
I think I first heard this from a “moreplatesmoredates” (cringing at the name) YouTube channel and took it as fact without double checking the claim. I can’t find it now and a cursory check of the literature doesn’t show strong evidence to back up the theory.
I’m going to read the paper in more detail now.
skippinglegday
Member
Masteron
pros: more aggressive (in a good way), much better libido, dry and hard look, more confidence and happy mood, crazy vascularity.
cons: harsh on your lipids, can make you look flat, crazy hair loss.
Primo
pros: makes you fuller, is a good AI, good for cutting to maintain lean mass, good fake natty look, RBC boost gives your skin a nice tan, chill steroid you won't feel much it just works in the background.
cons: actually lowers my libido even when e2 is in range & hair loss.
I much prefer Masteron over Primo. But hair loss man... not worth it.
pros: more aggressive (in a good way), much better libido, dry and hard look, more confidence and happy mood, crazy vascularity.
cons: harsh on your lipids, can make you look flat, crazy hair loss.
Primo
pros: makes you fuller, is a good AI, good for cutting to maintain lean mass, good fake natty look, RBC boost gives your skin a nice tan, chill steroid you won't feel much it just works in the background.
cons: actually lowers my libido even when e2 is in range & hair loss.
I much prefer Masteron over Primo. But hair loss man... not worth it.
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