i have IS, TUTH, and IG, is it ok to pretty much spray each one on top of the other or does that diminish the effects? should i spray them like IS on one side of the neck and IG on the other with TUTH on the chest or does it really matter? thanks for any info.
In my opinion, it’s always better to wait for the application to dry first before coating it with another, different spray.
You’d optimally want TUTH to be applied at your chest, half-way torso area, it has a strong scent that many women could associate with sweat or piss so you want that out of you way and covered.
IG would be best sprayed on open areas, mostly neck region while IS could be sprayed to face for self effects, or hair and back of neck for better diffusion
As with any pheromone, some people may find them rather offencive smelling, including yourself. Several factors play into this; such as how much has been used, the sensitivity a perticular person has to that pheromone, wether or not a cover scent has been used and so on.
I have tuth and pure Androstenone, I have yet to find it unpleasent smelling myself (infact, I rather like the smell) and have yet to recieve a complaint of any odors. To say many women could asssociate it with sweaty /piss odors is rather harsh, it is indeed a possibilty, but not such a consistant fact. I would feel free to spray it on any logical location, if you are an unfortunate person that does come across as smelly when wearing it then try a different location such as your chest, or just covering it with a cologne.
You can spray pheromones anywhere you like and on top of each other. Depending on the pheromone you might want to alter the locations, for example IO /CTTM are considered as very good social pheromones and as CTTM suggests, helps gets you socialising, spaying such a product to you hair (which is a good diffuser, by the way) would help get it out in the air to better work it’s charm. Whereas Tuth would be better suited for more closer incounters, so neck possibly, maybe wrist if you’re expressive with your hands etc.. etc..
There are some good topic about differernt application points on these forums, generally all pulse points are good as the increased blood circulation = more heat = better diffusion, and as i mentioned, hair is a good diffuser so those with long hair can exploit that.
Personally I would say IG behind your ears /on your wrists, IS on your neck. Tuth, upper chest /wrists. I’d use IG /IS first before Tuth, see if you get good results with those as tuth can make you come across agressive so IG /IS will be a good starting point, then try introducing some tuth 
here’s a question that may sound kind of “newbie” or unimportant. When everyone says “apply to forearms” do they mean palm side or opposite side? It may not make a difference but i’m just curious.
I don’t believe it makes much of a difference, I personally would interpret it as the underside because the wrists /pulse point side of it, however the other side is hairy (usually) and does help diffusion (so i read).