I am new to the world of pheromones and want to try out the NPA product 
. I want to know how long the product will last after you apply? Can NPA be applied “raw”? Also, does height, age and race affects the amount of drops I should use because I am Asian, 5’5 and 18 years old; should I apply more than 2 drop since I heard that Asian tend to produce less natural pheromones?
There are any number of NPA threads here if you search eg:
NPA can be applied neat but do remember it is in an alcohol base and from a bottle with a non-accurate dropper. So the chances of controlling dose at your age is next to nil. Still, some guys manage it.
IME, you get by far the best results from mixing it - 1/5, 1/4, 1.5/3.5 npa/cologne in ml are all common dilutions. Dilution with scent also improves diffusion, effective range and limits the potential for NPA to stink like no other phero. Which can also happen if you use it straight.
Age race and other factors do affect matters, however it is nowhere near as simple as saying use more or less drops of this and that - You need to test to find the effective dose for your body chemistry and social situations.
I find I get around six hours effective use per application.
TBH, as an eighteen year old, there are probably other products you could make better use of.
Why not have a read of this, then post a thread in the intro forum:
https://pheromonetalk.com/t/how-do-i-qualify-for-a-25-gift-certificate/19934
That way, you earn a GC to help offset the costs of trying stuff out
NPA works great, straight and in heavy amounts.
HOWEVER…I’m late middle aged and a white guy, targeting 40-something white women.
My dosage won’t work for you and my targets are not your targets.
Light amounts of AMMO or SoE might be better for you.
Thanks alot, I actually have tested for over 2 weeks before i posted my thread and I don’t know why but it seem there is something weird about it. When I apply 2 drops neat I found them kinda looking disguested and ignore me or just chatting with the other guys when they usually talk to me 
. I thought I overdosed it and went down to 1 drop and this time they just act like usual . I was so frustrated and went !$%$%!@ and apply 4 drops on myself and it seems working 
. They just want to get close to sniff me or something and kinda teasing me also (NPA smells so bad I apply it neat, why girls want to sniff me ?). I thought NPA should be used as “less is more” but 2 drops repel them and 4 drops attract them and I really don’t know why. I think The Edge can be more handleable for me. Can I apply it neat like NPA and can I also apply The Edge and NPA together?
I heard that NPA usually target women around their 30s and younger girls are just too intimidated to show affections . I just kinda want to get around the norm a little since I am Asian and have less natural pheromone meaning less intimidating factor ( I think, can anyone confirm this ?). And is it really possible for a 5’5 Asian being too intimidating for women?
I am a bit younger than Whitehall but I agree with his read on NPA. I will go with 3-4 drops easy and have gotten good reactions off of it.
I looks like you need to work on improving its diffusion then - Try mixing it, then count the sprays you need when building-up to your working dose. Drops alone will not be a reliable measure.
The Edge is identical to NPA - It is a 1/5 mix, ready for spraying straight from the bottle, so to that end it is easier to work with and yes you can use them together but that puts you straight back to square one for dosing and as an eighteen year old, you need to be accurate as you are likely to OD on far less of it compared to older guys.
And there is a LOAD of info on both products at the place you purchased it. Read through the Archieves. 
That’s the straight poop and darn good advice. Edge is a much better choice for noobs as it’s the same thing as NPA but sold in a ready to use form. NPA stands for “New Pheromone Additive” and is designed for mixing 1 part NPA per 5 parts of cologne. Using direct drops on a 18 year old–unless you are very knowledgeable and experienced–is a sure ticket to disappointment and OD.
With that said, NPA helped get plenty of honey on my stinger back in my loose dog days, so it’s a solid product when used correctly.
Mixing NPA is a Great Way to Find your Dose… I’m 40, I Can Literally Slap it On like After Shave… Even in THAT Kinda Dose it’s Been Effective with Ages 40+ and Down to Low as 20 Years of Age… It’s NOT an OD If You are Congruent… You Gotta Walk the Walk with NPA…