Guest guest Posted September 9, 2004 Report Share Posted September 9, 2004 Somtime ago, I switched from commercially produced deodorants to a rock crystal deodorant, which I believe is ammonium alum. I have tried researching alum on the internet, but I have found mixed opinions on whether or not it is as unhealthy as the ammonium in normal deodorants. One site says alum is safe, it's found in drinking water, and isn't absorbed into the body through the skin anyway. Another says it's absorbed and dangerous. Does anyone have opinions on this? Thanks Jo Quote Link to comment Share on other sites More sharing options...
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