B6 and Letro!
Letro will stop any steroids from aromatising into Estrogen
Progesterone will only cause gyno in the presence of Estrogen
So, if you take Letro there will be no Estrogen for the Progesterone to react to
As Letro is almost 100% (not quite) take Vitamin B6 to ensure you're covered
Don't bother taking Nolvadex whilst on Deca
Nolvadex will not stop steroids from aromatising into Estrogen
Nolvadex only blocks your Estrogen receptors
SO, your steroids turn to Estrogen but have nowhere to go, it just floats round your system
Nolvadex has also been shown to increase the amount of Progesterone receptors in your body
So if you take Nolvadex with your Test and Deca you'll have Estrogen, Progesteronic activity, and an increased amount of receptors, you're almost guaranteed to get gyno!
Another thing to think about,
If your steroids aromatise, the dosage of Test or Deca or whatever you're using is lower, meaning less gear for muscle building
i.e if you inject 500mg of Test only 300mg will remain Test for muscle building
(not accurate figures)
Now, if you use Letro you're gear won't aromatise, it'll stay the same as it was injected
meaning more gear for muscle building
i.e if you inject 500mg Test, 480mg will remain as Test
(not accurate figures)
Using Letro means your gear will be used more efficiently!
Bottom line, Use Letro and B6