Alternatives exist for those trying to avoid alum

 I switched to a mineral salts deodorant crystal to try to get away from aluminum. Now I read that it does have aluminum (it’s marked “ammonium alum”). The crystal works great against odor, but I don’t want aluminum in my life. I worry about both breast cancer and Alzheimer’s disease.
http://www.tristateneighbor.com/entertainment/country_living/your_health/alternatives-exist-for-those-trying-to-avoid-alum/article_21c4b38e-6b77-11e4-b9f0-1b807662bfc2.html