I honestly don't get the alum as an aftershave thing.
Some people find alum soothing after a shave, and it can be helpful with minor scrapes or weepers - it's an astringent.
Use it, if you are so inclined, after you shave, then rinse it off.
Do people walk around with alum scum on their face all day? If you're rinsing it off, then it's not an aftershave.
I apply aftershave, but I certainly don't rinse it off after I have applied it.
Just because you use something after you are done shaving doesn't make that thing an aftershave.
My grandfather used to put bits of toilet paper on his face to stop weepers after he shaved, but he removed them before he left the house. Toilet paper isn't an aftershave either.
Some people find alum soothing after a shave, and it can be helpful with minor scrapes or weepers - it's an astringent.
Use it, if you are so inclined, after you shave, then rinse it off.
Do people walk around with alum scum on their face all day? If you're rinsing it off, then it's not an aftershave.
I apply aftershave, but I certainly don't rinse it off after I have applied it.
Just because you use something after you are done shaving doesn't make that thing an aftershave.
My grandfather used to put bits of toilet paper on his face to stop weepers after he shaved, but he removed them before he left the house. Toilet paper isn't an aftershave either.