I'm sent by my company to reside in China for possibly years to come. about 6 months ago I went to get a trt script and the Dr. told all of china only uses one brand and it's only available as undecanoate (the longest ester) my script in the Us is for test C so I didn't know what to expet. He told me since a lot of foreigners here are older and on TRT he let's the patients just self administer at home (as opposed to coming in once a month for an injection). But to keep my levels as stable as possible I just inject 90mg weekly (puts me around 800 on the dot) and based on the website 'steroid plotter' doing undecanoate once a week has the same fluctuation as doing test C EOD. So why is undeca so unpopular?
