Say I apply some instant shine or ammo and spray armani code over it, will that reduce its effects.
Nope. Many of us cover the more smelly pheromones with our favorite cover scents.
No, not really. It usually enhances the effects- slower evaporation and the pheromones are scattered farther away. It’s not absolutely necessary though. With unscented pheromones, however, it’s a very good idea because otherwise you get more self-effects (if you experience them at all) and the cloud as such may not be as big as with a scented pheromone.
I wrote a thread in the “Parfum” section about some of my thoughts on fragrances and pheromones some of my thoughts on fragrances
The additional scent will not likely reduce effects, but may not tip off people you are normally around, as they will not notice as much of a change in smell.
Some people do not like some smells, so a cover scent may turn some people off because of the cover.