From an UK clinic
https://themenshealthclinic.co.uk/gold-standard-trt/
Personally I think nebido is dumb.
Its not how the body works naturally.
Even c and e imo are too long.
But the site said it takes 450 days to reach peak levels(if I read that correctly)
Shit id rather use suspension for trt using insulin needles everyday. But im kind of nuts .