is your enemy. It may be useful if you’ve forgotten your own soap. BUT using is will bite you in the ass in the end.
This malicious soap tricks its user by cleaning successfully then once the user learns to trust the soap he or she will make the deadly mistake of using it on their face.
Oh woe is you face washed by the trickster hotel soap.
See, the hotel soap dries the shit out of your skin. There are no oils in hotel soap that replace the oils you wash off with said soap. The thing is you don’t notice this when you use it to wash your body. This is where the soap gains your trust. (bastard)
Anyway…
So you then use the soap to wash your face once you realize it’s a good soap. Once the shower or bath is complete you evacuate the tub and dry off feeling clean and refreshed.
A few moments later you will likley look into a mirror and observe your beautiful face and BAM!!!!
Your face is as dry and cracked as Raddlesnake’s ass.
WTF happened?
The fuck happened was you used the vicious hotel soap on your face, stupid! It raped your face of oils and nutrients and did not supplement them with ones on the soap. Why you ask?
Because hotels are too cheap to pay $0.10 more a bar.
The lesson for the day is to being your own face soap to hotels or your face will never forgive you.
Nice Girl Mean Thoughts 
I’ve had this experience too. I’ve also washed my hair with hotel shampoo. The next day my scalp was snowing.