how many spray of ammo??? Also is it good all by itself?
Yes it is.
Thats why its recommended to everyone new to pheromones.
Ammo is a cologne with pheromones that can work absolutely on its own.
Not that the outher dont 
but it is really good by it self
I suggest you use no more than 4 sprays. The cologne in there is strong.
Ammo is a well buffered pheromone. It can be used by itself