You mean the soap they use for cleaning the bar? Because the liquid soap in the bathroom at the bar would be hand soap, unless that is also what they use to clean the bar.
As do I, because I’m allergic to perfumes. I take a bar of Ivory, in a ziploc bag, when traveling. I don’t mind hotel soaps for washing my hands, but not in the shower.
I have the same problem with shampoos. I once found a perfumeless one, but not longer. I think they irritate my scalp.
I’m currently in a Westin hotel in Canada. There’s a little round “bar” of hand soap next to the sink, and the shower has large containers of shampoo, conditioner, and body wash affixed to the wall. I tried the body wash. It’s okay. It’s decent enough that I’m not going to bother asking for another bar of soap.
I always called that body wash scrunchie thing a pouf. Loofahs were the cylindrical rough spongy things.
I switched to bar soap several years ago when the strong perfumes in body wash started bothering me. Plus, I got tired of my poufs getting moldy. I used plain old yellow Dial until it started drying my skin out too much, then I switched to “natural” soaps, either Appalachian Natural or Vagabond Tabby. They’re more expensive, but since it’s just me using it, they last about three months per bar.
The biggest problem with bar soap is that sliver that falls out of your hand and dissolves in the hot rain before you can figure out where it got to, and the full bar sits in a wrapper in the cabinet under the sink. I was introduced to the soap bag, which has a nicely textured mesh for scrubbing, and when you get near the last sliver, you can just add in the new bar to keep it company in its last moments on earth.
I’m at the Luxor hotel in Las Vegas and all they offer is bar soap. I’m in a Tower elite room, which is one step above the base room. So, bar soap lovers, you may have a new hotel to consider if you’re ever in Las Vegas