Mr.Feathers's picture
Mr.Feathers
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Aromatization rate of NPP? EQ?

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What is the percentage that NPP aromatizes to estrogen? What about EQ? Personally I have heard NPP aromatizes at 20% the rate of testosterone and EQ aromatizes at 50% the rate of testosterone... even tho it is common for people to suggest EQ over NPP because they say EQ aromatizes far less then NPP? I would like if someone had some concrete answers and facts on this not just bro science!

Bearded_muscle's picture

Those figures are somewhat accurate.
EQ is technically “more mild” in side effects because npp can directly act on the progesterone receptor. Also it acts to increase your sensitivity to estrogen and prolactin. Let’s say you normally have a little estro spike here and there and it’s no problem right? If you add npp that usual estrogen spike could turn into gyno, even though it’s no higher than usual (for you).

Now while EQ aromatizes much less than test, it also partially aromatizes into a mild aromatase inhibitor. Some guys don’t notice it much, some guys feel this effect so much they can actually use EQ instead of aromasin or arimidex and need to keep test high just to maintain normal estrogen levels while running EQ.

As you can see estrogen is tremendously individual. I’m currently running deca with zero testosterone. I do NOT recommend that, but after years of experimenting and bloodwork that’s what produces good results and zero sides for me. Fortunately nandrolone has a TON of medical literature on it so a quick google search will turn up more reading than you could ever need on the subject. EQ less so.

stairmaster's picture

Depends on your body , I tolerate NPP much better than EQ.
Don't forget to do bloods!

DfromPhilly's picture

X2 everyone is different. Pretty much nothing will go by the book and the way you planned it lol

DfromPhilly's picture

NPP does not aromatize into progesterone. That’s not a thing. It is a progestogen itself, and binds to the progesterone receptor.

Caber is also not to combat progesterone, it is to combat prolactin. Prolactin can be raised due to raised progestogens and estradiol.

High estradiol can also raise prolactin.

Know your shit before you start schooling people. This is how false information spreads, and why “bro science” has a bad name.