Gear does effect it and even the way you sweat. If you ever taken tren, test or deca it will effect you.
I'm on that now- tren has never affected my body odor, neither has test. Thats my maintenance cycle. I run that year round and have zero body odor. None. And with what I do for a living i can tell you I come across dozens (if not hundreds) of individuals running test in HRT/TRT regimens and body odor has never been a complaint.
Androstenone is what causes body odor- depending on the individual it either smells like sweat, urine, sweet, or not at all. In turn, some people can't smell it, or smell varies.
Various studies have led scientists to believe that testosterone may play a role in raising andro levels so as to raise a male "musk" to attract mates.
On tren you could have every girl on the site with their asshole in my face and i wouldnt grt hard for shit.
And this (while put bluntly) is why blanket statements of "test/tren make you smell" are incorrect. Tren makes me rock hard- the Colonel has the opposite effect. Gear, much like any other medication, can have varying side effects or even idiosyncratic reactions in various individuals. We could all do the same cycle and have varying results.