Is anyone able to suggest how long these colognes are potent? I’ve had a few bottles for about 30 months and am wondering if they might still work.
If they have been stored in a cool, dark place, they’ll be raring to go when released from captivity in those blue bottles.
Moderate heat won’t bother them, but I’ve read that strong sunlight might break them down.
I don’t think you’ve got anything to worry about. 
Let them loose! 
Musk
I have a bottle of Ammo from January 07 with the original Ammo scent I’ve been holding onto and it works great still. Kept it on a shelf in my office in not so cool or dark place and works like Lucky charms: Makes women magically delicious.
I have a bottle of Aramis Devon from the 1980s that still smells great. As for mone impregnated colognes, my 5 year old Realm and nearly as old Chikara are fine as well. I wish I had a bottle of 2007 original scent Ammo but I tended to use that stuff up in a couple months. AD should reissue original scent Ammo as a custom scent package (with legal declaimer for sensitive skin).
Or perhaps they should make it only available to reporting users who are willing to sign a waver regarding the skin irritants.