i would recommend that you read the two posts below one on finding your personal sweetspot (dosage which gives you the best results and no negative results)
How to find your sweet spot… - PheroTalk Pheromone Research Forum
Also i would pay attention to where you actually place pheros on your body. there are several contact points which are favoured. For instance on the chest or on the wrists. All of these contact points influence how far your “pherocloud” so to speak is.
Ammo is a great choice and once you find your sweetspot and your contact points it works like magic.
good luck and welcome to the forum!!!