Morning and welcome to your new life 
Yes they do work. Not a magic sure all, but certainly do enhance what you already have and A314 is a favourite amongst the guys here. From what I read the none based products for guys older than mid 20’s-ish seem to be effective in the O department
How old are you,as too much none when you’re producing lots naturally can have a negative impact.
As a girl TAC is up there on the O list, along with P83 and ISB. I was reading this thread yesterday: P103 (at 1:2) awakens P86
Looks like someone beat you to it with perfecting an O mix, but makes for VERY interesting reading. Some of those products are oos right now, but as you experiment, you’ll be able to tell us what works for you 