Thread: 400 mg/ml Testosterone Cypionate

Test E is commonly found in high concentrations, but some people have issues with pip from left over acid from the esterification process. I am one of those people. In pursuit of a less “pippy”, but comparable ester length and concentration, I tried making testosterone cypionate at 400 mg/ml. I currently have a 10 ml sample in storage at room temperature for a week and it has not crashed. The formula is stupid simple, assuming you have no issues with ethyl oleate.

4 grams of testosterone cypionate was added to a 10ml beaker
0.1ml benzyl alcohol was added (1% v/v final)
Ethyl oleate was then added to the 10ml mark

The mixture was heated and stirred.
Beaker was capped and left in a cabinet at room temperature

Should I leave it longer to see if it crashes or should I sterilize, inject, and see how pippy it is or isn’t?

No , it will usually crash with in 24 to 48 hours . Now have to make sure it stays like at least 65 degrees plus all the time . I do believe there will be some pip with it also anything over 300 mgs at a time will usually have some pip . Make sure to pin very slow cause EO as a carry oil will make it super thin and cause leak back pip.

Originally Posted by Jaxz

No , it will usually crash with in 24 to 48 hours . Now have to make sure it stays like at least 65 degrees plus all the time . I do believe there will be some pip with it also anything over 300 mgs at a time will usually have some pip . Make sure to pin very slow cause EO as a carry oil will make it super thin and cause leak back pip.

My place has been around 63 without the heat on. Should be good on that front. I have not experimented enough with high concentration gear, but I agree that pip is probably likely at high concentration for any gear that is not a liquid at body temperature. I have always wondered if raw equipoise wasn’t so thick if you could shoot it straight. People shoot it at 600 mg/ml no problem.

And yeah, ethyl oleate leaks like no other. My delts always leak from eo pins lol.

Highly doubt this concentration would hold in a traditional carrier oil. Glad to hear it went well with EO! Some notice higher concentration tests tend to lump easier. I’d say give it a shot, and let us know how it goes!


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Update. A week out from a few .5ml SubQ stomach fat pins. No pain. No nodules. Can’t speak for IM, but SubQ works. Goal here is to use super high concentration gear as SubQ. Low injection volume, no muscle scarring, no pip interfering with workouts. Curious about trying this with test base.

I'm not 100% positive but I think test base might hold at 50mg/ml or less with 2% ba and 20%bb and eo for carrier oil any higher concentration will require guaiacol and even 50mg/ml might need a little guaiacol