I dont know what they have in Germany. Look for anything that says anti bacterial like Dial. If you have sensitive skin all brands usually carry something in there line for that as well.
Your chest and neck also carry the coryneform bacteria. I know its sounds gross but we all have it on us from head to toe. Its more active in dark warm sweaty areas of the body though.
Also you used a lot of different molecules up there. You need to determine which ones are the stinkers for you so you may have to go back and try them one by one again.
From experience I can tell you that …
P75 and Androstenone can smell pissy
P96 gives more of a musky skin scent. Not bad just like skin.
P74 and P86 has no scent problems
TAC smells sweet to me but not like piss.
P126 is newer. I find no pheromone smell what so ever with it.
So maybe test the most likely subjects out first.
Are they aware you use pheromones ? Do not make people aware of it. They work in the subconscious once you make them conscious of it they often begin to mask and associate.
There is a possibility your Brothers GF is what Harris calls a super smeller.
Here read this …
Tisha