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Not at all. It crashes it when I run primo at 600mgs even with 750 test. Maybe as time goes on it will but I’m about 5 weeks in. Great results and libido with this stack and dosages.
If primo or a metabolite is in fact an aromatase inhibitor then this would make perfect sense.

At some threshold dose of AI, essentially all aromatase gets deactivated and no aromatization of testosterone (or trestolone/nandrolone) occurs. These are the doses of prescribed AI drugs to knock out essentially all (~99%) aromatase:

Exemestate/Aromasin - 25mg/day
Anastrozole/Arimidex - 1mg/day
Letrozole/Femara - 2.5mg/day

Not surprisingly, these are the doses for breast CA hormonal therapy where total E2 deprivation is the clinical goal. Primo is obviously not nearly as efficient/potent, but let's say for discussion it is 100mg/day = 700mg/wk.

At 350mg/wk primo, if half the aromatase gets deactivated, a test dose of 300mg/wk will still convert to half the E2 it would w/o primo, so similar E2 as 150mg/wk test - which is still far more than the body produces naturally and therefore more than sufficient to provide physiologic estradiol.. some need a little AI support even at a 'low' TRT dose of 140mg/wk test to keep E2 in range.

Now double to 700mg/wk and all the aromatase becomes deactivated, so E2 conversion from testosterone is halted, regardless of how much test is available. Ultimately the absolute dose of primobolan is far more important than the test to primo ratio.

Nandrolone may indeed offset these effects somewhat as it seems to either upregulate aromatase production and/or sensitize estrogen receptors to estradiol - which is why adding it to a cycle often results in high E2 symptoms ie gyno, water retention, acne, etc despite itself being a very poor candidate for aromatase. Hence why nandrolone-only cycles require extremely high doses to achieve physiologic E2 levels.
 
Now double to 700mg/wk and all the aromatase becomes deactivated, so E2 conversion from testosterone is halted, regardless of how much test is available. Ultimately the absolute dose of primobolan is far more important than the test to
Need 12.5 aromasin every day on 600 test for a 30-40 e2.


600 test with 200 primo has me at 20 e2


My buddy can run 800-1000 primo with TRT test with zero issue.
 
Nothing beats that tren-charged feeling of heading to the gym, sipping a Monster,
cause I can’t put mine in bro’
reminds me of rich pianooo, that's going to be my fall cycle, tren, amphetamines, nicotine and test, how's stans tren? never tried him before but looks like grape seed from china is done, maybe stan would lower the minimum for a quality member like myself?
 
reminds me of rich pianooo, that's going to be my fall cycle, tren, amphetamines, nicotine and test, how's stans tren? never tried him before but looks like grape seed from china is done, maybe stan would lower the minimum for a quality member like myself?
I have used Stan’s Tren and it’s amazing. No PIP.
I use his Tren Ace.
 
reminds me of rich pianooo, that's going to be my fall cycle, tren, amphetamines, nicotine and test, how's stans tren? never tried him before but looks like grape seed from china is done, maybe stan would lower the minimum for a quality member like myself?
Stan’s Tren E had veins coming out in places I didn’t know existed. Libido was thru the roof it was infuriating. Was strong and lifting hard as fuck. Wish I could run it again :(
 
I have used Stan’s Tren and it’s amazing. No PIP.
I use his Tren Ace.
Stan’s Tren E had veins coming out in places I didn’t know existed. Libido was thru the roof it was infuriating. Was strong and lifting hard as fuck. Wish I could run it again :(
yea, just waiting for stan to say he will lower the minimum to one vial of tren then maybe I'd give him a try
 
Stan’s Tren E had veins coming out in places I didn’t know existed. Libido was thru the roof it was infuriating. Was strong and lifting hard as fuck. Wish I could run it again :(
Yeah Tren Ace
yea, just waiting for stan to say he will lower the minimum to one vial of tren then maybe I'd give him a try
lower the minimum to one vial and MAYBE you would give it a try?

Pffffffft.
 
If primo or a metabolite is in fact an aromatase inhibitor then this would make perfect sense.

At some threshold dose of AI, essentially all aromatase gets deactivated and no aromatization of testosterone (or trestolone/nandrolone) occurs. These are the doses of prescribed AI drugs to knock out essentially all (~99%) aromatase:

Exemestate/Aromasin - 25mg/day
Anastrozole/Arimidex - 1mg/day
Letrozole/Femara - 2.5mg/day

Not surprisingly, these are the doses for breast CA hormonal therapy where total E2 deprivation is the clinical goal. Primo is obviously not nearly as efficient/potent, but let's say for discussion it is 100mg/day = 700mg/wk.

At 350mg/wk primo, if half the aromatase gets deactivated, a test dose of 300mg/wk will still convert to half the E2 it would w/o primo, so similar E2 as 150mg/wk test - which is still far more than the body produces naturally and therefore more than sufficient to provide physiologic estradiol.. some need a little AI support even at a 'low' TRT dose of 140mg/wk test to keep E2 in range.

Now double to 700mg/wk and all the aromatase becomes deactivated, so E2 conversion from testosterone is halted, regardless of how much test is available. Ultimately the absolute dose of primobolan is far more important than the test to primo ratio.

Nandrolone may indeed offset these effects somewhat as it seems to either upregulate aromatase production and/or sensitize estrogen receptors to estradiol - which is why adding it to a cycle often results in high E2 symptoms ie gyno, water retention, acne, etc despite itself being a very poor candidate for aromatase. Hence why nandrolone-only cycles require extremely high doses to achieve physiologic E2 levels.
Thank you so much for explaining this to me as I was still a bit confused as to what exactly is going on. I just know that this is definitely a sweet spot but am curious as to how much primo I could run without complications. I bumped to 450 and was thinking of 500 but after reading your post I’m gonna stay right where I’m at or maybe even cut down to 400.
 
Yeah Tren Ace
Last run with Tren ace I had zero sides at 400 a week. Was interesting given Tren E 200 2X a week was way different. Made me question the cycle every day. Like hmmm Tren ace should be hitting way harder & I’m feeling nothing side effect wise.
 
Last run with Tren ace I had zero sides at 400 a week. Was interesting given Tren E 200 2X a week was way different. Made me question the cycle every day. Like hmmm Tren ace should be hitting way harder & I’m feeling nothing side effect wise.
Given some preventative prami dosing, I've had relatively low sides from Tren Ace at 200/ wk. Outside of some thinned patience, I've found it far more tolerable at low doses with most of the benefits from a high dose, with far less sides.
 
Given some preventative prami dosing, I've had relatively low sides from Tren Ace at 200/ wk. Outside of some thinned patience, I've found it far more tolerable at low doses with most of the benefits from a high dose, with far less sides.
I'm 235 lbs and I don't go above 60 mg weekly of Tren E (pin 20 mg EOD) - no side effects and plenty of benefits. I did the 100 mg EOD of tren ace in my 20's. I was lucky to tolerate it well but I've found that the effects are the same with a dose as low as 50 - 70 mg weekly of enanthate. Also the longer ester mitigates sides that come from fluctuations in blood levels. Of course, if you get uncomfortable sides they will stick around longer with enanthate or hex.

I've heard time and time again that the top guys in the 90's never went above 2 to 3 parabolan amps per week. I have no idea how the culture of mega dosing tren came about but it is insanity.
 
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