I'm at 27 nmol/l which is around 800 ng/dl which I'm happy with nowadays.
Whoever told you you require 150-200mg per week to notice a difference is talking shite. If your T levels are quite a bit higher on 100mg per week than they are in a natural state than you will put on more muscle. It's as simple as that really (as long as you're fueling and training with the right intensity alongside). I was a competitive bodybuilder back in the nineties and have been weight training around 25 years so it's not a case of beginners gains which I've wrongly attributed to the raised T levels.
This is key here.... to
"notice a difference"
On trt as long as your TT/FT levels are in a healthy range and you are weight training/eating properly than it will definitely have a positive effect on body composition (increased muscle/loss of body fat) to a
certain degree but do not expect significant gains muscle/strength as in order to truly see significant gains in muscle/strength one would need to use testosterone doses of 300-600 mg/week and even than gains would be much better closer to the higher doses 500-600 mg/week.
On average most on trt are using doses of 100-150 mg/week (sure some are using 200-250mg/week but it is not common).
For a good majority of men 100-150 mg/week would put their TT/FT levels in a healthy range (although some do need slightly higher doses).
As we know it comes down to the individual and their genetics/SHBG levels/sensitivity of the AR on how they respond to said TRT dose and what TT/FT level is achieved.
I can hit a TT of 1200 and just over double the top end of the range for FT injecting 150 mg/week (75 mg every 3.5 days) and my SHBG is smack dab in the middle of the reference range.....others may need more/less to achieve the same testosterone levels as we are all different.
If we compare natural endogenous testosterone levels to exogenous testosterone levels when on trt.....with natty T there is a natural 24hr circadian rhythm where T levels are highest (peak) in the early am and slowly decline in the late afternoon/evening (nadir)
As oppose to when using exogenous T and levels are constantly elevated 24/7 albeit there is still fluctuations/peak and valleys (which can be smoothed out by injecting more frequently using lower doses).
Key point is on trt ones testosterone levels are constantly elevated (as long as protocol is ideal as in ones T dose/injection frequency) which puts the body in an anabolic state 24/7 so as long as you are weightlifting and following a proper diet not only will adding muscle/increasing strength be easier but recovery from workouts will also be improved!
Also understand that significant gains in muscle will not be achievable using trt doses and if that were true than no one would use/abuse testosterone/AAS
@ FightingFungus