If really want them in carry on, put your pheros in the 5-10ml aluminum atomizers. Any questions - it’s cologne. Really want to be slick? Put a squeeze of cologne inside the cap. Anybody who’s nosey can identify it as cologne without having to hose down the whole room.
This subject comes up on a regular basis. Do the searches (some fascinateing stuff) if you want but so far the best thread i’ve found about airline travel is: