Looks like perfumes are prohibited so I imagine alcohol based colognes and aftershaves are as well. Whenever I mail items they ask if it contains any liquids, flammable or hazardous materials. I have received cologne and aftershave via USPS. 
I have some items to ship and because they are not all full you can kind of hear them slosh a bit so they will know it is liquid.I would like to know how others mail these kind of items via USPS ? What is the response to their questions?

I have some items to ship and because they are not all full you can kind of hear them slosh a bit so they will know it is liquid.I would like to know how others mail these kind of items via USPS ? What is the response to their questions?