Disagreed, tried this suggestion based on reading on its deodorizing properties on this forum and was pretty unimpressed. Works a little but it does nothing to eliminate odors I've found. Would definitely not depend on only alum on a day where I'd be sweating a lot
duckdown, are you using shaving alum or deodorant alum? The alum I use for shaving is Potassium Alum. My deodorant is Ammonium Alum, plus some unspecified mineral salts. I don't know if it makes a difference b/c I've never tried to use my shaving block as deodorant, but I was never able to get good antiperspirant or deodorant protection until I started using the Crystal. I wet the stick before using, make sure I get good coverage all over one pit, rinse well, repeat on the other pit, rinse again, and I'm good to go.