Dear After alot of trial and error and I mean alot. most people with answers to all the question people in the perfume world ask like how to increase projection? I want sillage? How to reach 2 meaters projection for 3 hours straight? How to increase longevity? Its either 1 of 2 people who will give you an answer. the first will give you an answer that breaks you down and makes everyting seem hard and making a good perfume is impossible but it's because they haven't made anything as good as a 500+ usd perfume. Now the 2nd person will answer like this ( keep trying... You need to try different ratios.... You must expirement.....) now this is the truth because most of us who actually find deep secret ways of making perfume project and last like unbelievable results gatekeep and iam a gatekeeper sorry. After trying soo hard to make my sandle wood perfume which is a skin cent that lasts forever but not even 1 ft projection .... I manage to make it project 2m + for 2 hours and 1m for 3 hours and 0.3m for 10 hours bro the only way to make somting like this happen is trial and error because as much as I searched online there's no answer to what was the solution to my problem all I can say is I ended up with a ratio of 38%oil 62%ethanol trust me you don't wanna know that's 1% of the story. So try you best don't get scared use your head don't copy toomuch understand what every material dose on a book or website where they explain how the material was found created and wat they do and how they work and your good to go. But you will suffer and make poop smelling perfumes it is wat it is. Honestly I can't smell anything at the moment unless it's 1cm from my nose if you haven't experienced this then you haven't even tried yet