Hello Welcome to Pherotalk 
Whew you do have alot of questions. Ok Here go’s 
- When you want to attract an ex lover that didn’t feel your relationship had enough passion.
Depends on who is lacking passion him or you. If he is Lust After Me is good. Stinks bad so you need to cover it with perfume but works like a charm. If you think you would like to up the passion on your part as well get a little bottle of Turn Up The Heat. Its a mens product but a few dabs will get you passionate in a hurry.
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When you are female and want to attract another female that is straight.
If a female is straight pheromones wont make her switch sides but you can attract her as a friend with social pheromones like Instant Openness and Instant Honesty. Scent of eros for women is good for that to but you have to get that at another store. You will find it easy with a google search
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When you want to be invisible (like when you don’t want a professor to call on you in class, or you don’t want to be hit on at a friend’s party).
Hmm this one is tough, I use alpha pheromones when I want more respect or people to leave me alone but I have experience and know what to use for me. There is really no mix that comes to mind that will make you invisible, at least for the women.
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When you are female and you want to bond with other females instantly.
Instant sexiness, Instant Openness Instant Shine Instant Honesty
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When you are female and you want everyone at the bar to approach you.
pheromones enhance your persona and attractibilty but they wont attract every person in the bar. To many variables. To get the most attraction possible I would use Lust After Me, Instant sexiness, MX135.
Questions about other variables that might change the effectiveness.
- If you’re a female that likes to apply a bunch of lotions and makeup after showering, what is the best application method, and could beauty products ever interfere with the effectiveness?
LOL I am a bath product diva. Apply makeup and lotion first. Then apply your pheromones. Then apply your cover scent if you plan to wear one that day. Lotion can slow the diffusion of pheromones while perfume or colognes will aid in diffusion. Makeup wont interfere.
- Being on long-term birth control?
**If you have been on the pill you will lack copulins. Cops as we call them are vaginal ****secretions that are made by young fertile women naturally. They signal to men that the women is a good potential mate. Men can smell them even if they are unaware that they do. Its been scientifically proven that when men are exposed to them their testosterone levels go up by 130 to 150% and they become aroused and attracted. The cops sold in the products here are not harversted by women of course lol. They are synthetic duplicates of the natural molecule and work great once you figure out your dosage. Lust After Me is a heavy cop formula although most of the ladies products have a trace of cops in them. **
- Alcohol that is being consumed by yourself and/or those you want to attract/repel.
Alcohol dulls the senses so alot of times you wont get a good reaction or go right over to the opposite extreme and get a drunk who over reacts to them. Either way not good with heavy alcohol. Light drinking should be fine though.
- Is there a noticable difference in behavior between targets with low self esteem vs. high self esteem?
Yes there is, High self esteem targets will hit harder and respond to most pheromones in some way. Low self esteem targets may take a bit more work. Not that they are not attracted but they generally have to work up the balls to approuch you.
- Are there any known vitamin supplements or prescription medications that would improve/diminish the effectiveness?
**No **
Other questions:
- What is a sweet spot and how do you find it?
Sweet spot means the amount of product you need to wear to see a good reaction. Take instant sexiness for example. I can use 2 to 5 sprays. 2, I will see mild results. 5, is my sweet spot though. This is the amount I need to get the best reactions and effects. If I used more it would just be a waste of expensive product. To find it you start with 1 spray, go out see how you do, if you didnt notice much uo it to 2 the next day ect ect… till you find your sweet spot.
- How do you know you have a hit?
Before you get your products pay attention to how people act around you. This will make it easier for you to notice hits. I wish I knew that when I started out. Hits can range from more eye contact to all out inuendos.
- What is the worse that can happen if you accidently overdose?
OD is something the men worry about more then the women because they use anone. If your a women who chooses to use a anone product (and we do sometimes to make sex more intense) then you need to use really small amounts. I ODed on TUTH when I first started out. I became a horny bitch from hell and got pissed when my hubby didnt respond right away. Then spent the rest of the day frustrated.
The rest of the pheromones if you use to much you will just smell over perfumed or like buttcheese depending on what your using LOL. Dont let this scare you. LAM smells a bit like buttcheese but for some reason as long as you use a cover people dont smell it. Remember its not the smell of the pheromones, that is secondary, Its the diffusion of the molecule entering the nasal cavity to the brain.
OK think that about covers it. If you want to know anything else just ask.
Your GC will be in your email box in the next 24 to 48 hours 
Oh and I suggest you start out with IO, Ishine and Instant sexiness and maybe a bottle of LAM if you can swing it.
Tisha