I thought I’d post my notes on some pheros and their different properties.. it was on bullet form on my computer, so I edited some to make it more sound like english.. 
On me, pheros usually last about 4 to 6 hours. With that said, some pheros do last longer and some basically instantly vanish (less than 3 hrs) Here are some pheros that I have figured out the golden spot/reapp times
Lust After me: this one is an oil form and lasts on me ALL day. Granted, I only tend to wear this one at night (right before going out or um.. 
) I usually get ready to go out around 9pm. I noticed that it lasts all day and even well into the next morning.. The best results are seen around an hr or 2 hrs afterwards however, even when the clock struck 12am, i was still the belle of the ball
Instant sexiness: this one lasts about 4 to 5 hrs on me. I put on 4 sprays in the morning and reapp 1 spray at noon and another at 5pm.
Instant Honesty, Instant Openness: 4-5 hrs as well. 4 to 5 sprays
Instant shine: 2 hrs? I’m not sure why but instant shine dies very very quickly on me. maybe 5 sprays with regular, but i use x2 now. I’m pretty sure it’s not the same way for others but I did read reports on how some people see better results with TAA. I might try TAA sometime soon
TAL: seem to last a bit less than instant sexiness. however, the hits are more blatant, esp when worn with copulins. (still testing)
TAF: lasts about 8 hrs. If I use too much, i get very ditzy and airheaded, so do NOT use more than 15mcg. Although, wearing a lot might not be a bad idea if I want to be social. Low doses = people focus on me and im more focused on my surroundings.
EST: last about 6 to 8 hrs. I think how long it lasts depend on the dosage. for me the best hits happen around 50 to 100mcg. I feel like this is one of the pheros that I would never get a negative reaction from others. However, I get very emotional and teary (like.. pregnant women on mood swings) if I wear them too close to my face. I tend to wear EST on my wrist and hair.
MX135: lasts all night. 3 sprays max unless i want to pass out from the smell. i only worn MX135 out, so I think it lasts about 6 or 7 hours. I think chocolatini scents might give the “clingy” effect because it seems to last longer than MX335.
MX335: same phero as MX135 but different scent. I wear about 8 sprays to get the same effect as 3 sprays MX135. I feel like diffusion is not as strong and it does not last as long. but id really rather reapply MX335 than wear the chocolatini scent.
MX282: again, only worn it out to clubs (or at least more aware) it lasts about 6 or 7 hrs as well. i noticed a hit on the way back around 3-ish so I know it lasts longer than 6 hrs.. I wear about 4 to 5 sprays.
P74: super friendly phero. lasts about 6 hrs, best when worn with something else though. I feel like p74 is EST without the sex, best effects at 75mcg.
P79, P83, P104: not sure yet.. 
I usually wear them with other sexy pheros to give more edge.
P107: i think p107 lasts about 5 hrs, but I’m not sure. my concentration ran out 
I have tried anywhere from 25mcg to 75mcg, but Im not sure of my money-spray yet.
yay feel free to modify and share your different experiences!