I am planning on making my own mix. I have the amounts I need for my mix down. There are 5 pheros. For my first batch I want to only make a 5ml togo size for testing. I have done the math to figure out how much of each phero I need to put into the mix.
I want to halve the strength of my mix.
What is the best thing to use to dilute? I have read about everclear, however I am not sure If that will give me an odor of alcohol or not. (I do not want to smell like a drunk lol) The androtics store offers perfumers alcohol or dipropylene glycol. What would be the best one to use? Is there a better option? Thank you for any help 
Edit: Also what effect would this have on the diffusion rate? Would this cause the time the mix would be effective to lessen?