Hey about your questions, they come from labs … pretty easy this one 
, how they are done surpass me or I would do it myself 
, for were you put it, you keep it somewere fresh, dry and dark, and on your body the best places people will say are:
behind your hears, neck, chest and arms, back of your neck if its only to affect others and some even like places like top of the hair or cloaths.
Also you will want to learn how to find your sweet spot and how to find it, so just look up to this thread : How to find your sweet spot...
Every human being produce pheromones, and many are synthesized exactly has the human body produces them, older people tend to have a decreased production of mones, so you will probably have to get higher dosages to get the same effect I have.
The efects vary, they may make you look more authoritary and in control, they make you feel like you are more authoritary and in control, they also may influence you and other to be more open more happy, more deep, even more depressed, I experimented one mone that gets me sleepy, and of course the peoples choice: more attractive.
I hoped it helped, any other question in any regard to mones just shot and will try my best to awnser 