Moving from Test C to Test U for TRT

So I know some people have interest in Test U.

Test U itself has roughly a 21 day half life. It will help create less difference between the drug peak and trough on a weekly dose compared to test C
Some people may prefer this as theoretically may reduce the possible need for an AI(Yes this is controversial topic for TRT users).
This ester is not advised for people that are not on TRT as the PCT would be a pain in the ass.
You can do this ideally every 1-3 weeks. I personally use it weekly.

If I go on a trip and may be away for 2 weeks, I will hit myself with a double dose. No, I do not feel a difference.
If I do go onto a blast I will slap Test C onto Test U, but my Test U dosage will stay Static(unchanged)

So what is an ideal calculation that someone will go from Test C to Test U?

Lets say weekly dose of Test C is 200mg, your target Test U dose may be 10% higher(220mg)

The week after stopping test C, for the next 2 weeks you will give yourself 3x target dose of Test U(660mg) and then continue at 220mg weekly.


TU dose = (Test C dose) x 1.1
Loading dose for 2 weeks= (Target Test U Dose) x 3

View attachment 269663


If you have any questions, I am more than happy to answer it.
Thanks for posting this, super helpful.

Been on steady TRT 200MG/weekly using the Retesto from indian pharmacy, last levels in bloodwork tested showed 985. I guess the Retesto is technically sustanon, with small amounts of TestD in there. Am trying to jump off the Retesto because it has EO in it, and onto a TestE (from Stan) and wondering how to wean off the Retesto and onto the TestE, to try and keep levels as steady as possible. Messed around with the Steroid Planner and cant seem to find a happy middle ground that makes sense, and seem to find varying opinions on this across the board on how to do this.

Pinning .3ML IM M/W/F

Any insight into the transitional phase and how to do it properly? thx
 
Thanks for posting this, super helpful.

Been on steady TRT 200MG/weekly using the Retesto from indian pharmacy, last levels in bloodwork tested showed 985. I guess the Retesto is technically sustanon, with small amounts of TestD in there. Am trying to jump off the Retesto because it has EO in it, and onto a TestE (from Stan) and wondering how to wean off the Retesto and onto the TestE, to try and keep levels as steady as possible. Messed around with the Steroid Planner and cant seem to find a happy middle ground that makes sense, and seem to find varying opinions on this across the board on how to do this.

Pinning .3ML IM M/W/F

Any insight into the transitional phase and how to do it properly? thx


I would say just switch oils... keep the same total oil a week..
 
This is a great thread, thanks for the information and the effort you make to share.

I switched around 7 weeks ago from Test Cyp 150mg/week to Test U 150mg/week.
Made probably the mistake not to front load at all.
Stopped the Cyp and just continued with the Test/U.
Now 7 weeks after I started with the Test U I got my blood checked
and see now my Test dropping down to around 350 pmol/l.

Usually with Cyp that would give me around 900pmol/l.

Did I actually do the blood check too early or is the gear likely to be bunk?
Do I need increase the weekly Test U dosage for decent Test levels?
 
Back
Top