i asked the same question in regards to in the UK sustanon
250 being used every 3 weeks.these were the replies:-
(quote) einstein 1905
"Sustanon is the least ideal test
manufactured. The multiple esters are its downfall. Inconsistent plasma levels (spikes) are the last thing we want. If they wanted to make something that required less injections, you'd simply use only longer estered-test
and dose it accordingly (i.e. higher). Based on where you want plasma test
levels to be, you'd inject at a frequency that would allow for an even plasma level. This is virtually impossible with sustanon alone, unless you shoot various shorter esters during the intervening periods of sustanon injections."
"Good question. First, Sustanon is not FDA-approved, so i cannot use it. Next, I get a fairly stable serum androgen level using the protocols that I do use with Upjohn test cyp
. And einstein is right--those changing levels via the ester mix would make it much more difficult to dose it properly, especially initially. With the Upjohn, I usually have my guys tuned-up by the end of the second month."
i hope this helps.