Vitruvian's Steroid Profile of NPP (deca)

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Excellent question. And thanks for the compliment bro!

I completely forgot to mention this in the OP.

You do NOT need to start NPP after you begin taking endogenous testosterone; you can begin stacking the two compounds together from the get-go.

A popular misconception with NPP is that people are scared it will shut you down TOO hard (so they believe you should run test for a couple of weeks to avoid this.) But I'll tell you that's absolutely false. You will have NO libido issues from following this protocol.

^^ However, that said, you can get libido issues while on NPP (because it does shut you down very hard.) However, in that situation, one should consider implementing proviron @ 75mg - 100mg ED (while on cycle). Otherwise, look into viagra.

I think you mean exogenous testosterone, not endogenous.

NPP (Nandrolone) will also cause rapid HPTA shutdown, no matter what the ester.

Cycling this without a testosterone preperation may lead to testicular/erectile dysfunction in the majority of user's IMHO. I've never heard of anyone using Nandrolone with Proviron or viagra and being successful.