I know it depends on the volume, but want to know at least aproximately. I have never used perfume on a daily basis and I am really curious about how often do people need to buy it, if using almost every day?

My gf bought me some cologne and I couldn't smell it after a few hours; now i don't know if that's just my nose tuning it out, but I'm guessing a real factor in how long a bottle lasts is how much you use per application and how often you apply it.

Why are you so concerned? If it's cost, maybe a better question would be some nice-smelling options that are cheaper; maybe DIY solutions.

about 150ml per year (that's for EdP)

It's also a matter of concentration. An EdC may last for only an hour, an Extrait you may smell for a few days.

What is the extinction curve on extrait? Same as everything else?

My problem is if I want it to last longer, I put more on, but that's overwhelming. Is there any way to have a steadier strength over time?

Yes, if you want the scent to stick longer, you need a higher concentration, not more perfume.

I like EdP, you apply it in the morning and by the evening only the base notes are left, you can then re-apply if you are going out.

Generelly, the scent of a perfume always develops while you wear it. The top notes that can be smelled immediately after applying are gone after half an hour, then you can smell the middle notes and finally the base notes.

Concentration changes how long middle notes and base notes linger, the top notes always disappear fast.

Excellent! Thank you so much!

til those perfume bottles are apparently called flacons?!

I wonder if it is the nose because you get those folks that just reek and now I wonder if they stop smelling it and reapply. Or you go into an empty elevator and feel the need to cough.

They could be less sensitive.

It's also cultural. The old Argentine ladies I'd have to have tea with on family visits often really strong perfumes, but back in those days it was a welcome respite from the constant cigarrette smoke, though sometimes I got both.

The big ones last longer than the small ones.

I used to worry about maybe using too little because my nose tunes it out in after a few minutes but I can smell it again the next day on the shirt I was wearing.

I was wondering if that was just a typo... I'm still not convinced it's a word.

It all depends a lot. There are different types of fragrances, for example an eau de cologne will smell less long than an eau de parfum which will smell less long than a “real” perfume. So depending on your day and type of fragrance you might need to refresh it during the day, or not. How much you use at a time can also vary quite a bit by person and smell. People who have been using a particular fragrance for a long time tend to use more since the nose gets blind to smells pretty fast. In general I’d say less is more here. Obviously the size of the bottle makes a difference as well. Finally, a lot of fragrances will not last forever. If you keep them too long they will spoil like the food in your fridge. Usually this takes a long time though.

To give you some concrete examples, a 100ml flacon of Brioni Eclat, which is an eau de parfum, will last me about two years. I use it most days, with one or two sprays per day. A 75ml flacon of a cheap eau de cologne I liked before that lasted less than a year, because it needed more applications. The shitty Abercrombie fragrance I used as a teenager started smelling funky after about 4 years of laying in some closet.

oh maybe flagon? that I recognize. although that makes me think. of ale.

Please don't fucking use perfume 🤢

I will literally use it only to randomly meet you once in 20 years and piss you off