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View Full Version : Nandrolone decanoate honest profile, the gains are real but so is the deca dick, how did you manage it?



Beantown Rick
07-19-2026, 07:01 PM
Been seeing deca come up a lot lately so wanted to get a proper thread going with honest profiles rather than just the usual hype. I ran deca at 400mg alongside test e at 600 for 20 weeks last offseason and the gains were as real as advertised. Size, strength, joints all improved and I was holding more water than expected even with e2 dialled in, but the fullness looked good on a bulk so I didn't fight it too hard.

The deca dick is not a myth. Weeks 8 through 12 my libido tanked. I had test above the deca dose the whole run but didn't have HCG going and I think that was the mistake. Added HCG at 500iu twice a week around week 10 and things came back. Prolactin stayed in range on caber 0.25mg twice weekly but I wouldn't skip that either.

Long ester so you need to plan for it. I dropped deca 3 weeks before my last test pin and the timing still meant markers were elevated weeks after. If you're anywhere near a PCT or cruise transition, account for how long it lingers.

Worth it for a proper offseason bulk in my opinion. Post your own experiences, especially around the libido management side because that seems to be where most people run into trouble.

CaliBro
07-20-2026, 03:02 PM
The one guys miss is the prolactin side. Deca is progestogenic so prolactin climbs independent of E2 and an AI does nothing for it. Keep caber on hand at 0.25mg twice a week and start it the moment you notice any nipple sensitivity or the libido starting to drop rather than pushing through thinking the test will cover it. The test above deca rule plus HCG running through it takes care of the deca dick for most, but if you skip the caber and prolactin gets away from you it is a lot harder to walk back.

GODZILLA
07-20-2026, 07:02 PM
The point about NPP being the better option if you might need to exit fast is worth underlining. Deca committing you for months after the last pin is not a small thing. If you have any doubt about how you respond to nandrolone, NPP lets you find out without being locked in for a long time.

Chi Guy
07-21-2026, 03:03 PM
The water it holds is real and so is the blood pressure hit. My BP runs noticeably higher on a deca run from the fluid retention alone, even with test not going crazy high. Worth checking it weekly because that's what ends most runs early, not the compound itself. The smooth full look you get is part water and you only really see what you kept a couple weeks after dropping it.

Also one thing guys underestimate is the clearance time. That long ester keeps releasing well past the last pin. If you're planning PCT, budget the timeline properly or you'll be starting your SERMs with deca still active.

BIGDADDY
07-22-2026, 11:04 AM
The HCG point is key. Run it throughout, keep test above the deca, and most of the libido issues don't happen in the first place. People learn the hard way skipping it.

FrankfurtFit
07-22-2026, 05:02 PM
The other thing people underestimate is how long it takes to actually build. You see nothing for the first 4 to 5 weeks while the ester loads up, then week 6 onwards the size and fullness starts creeping in. Most guys who write it off ran it 10 or 12 weeks and never saw what it can do.

Run it 16 weeks minimum. Drop it well before you plan to PCT because it lingers. The keepers after the water comes off are what make it worth the effort.