Q: I switched to a mineral salts deodorant crystal to try to get away from aluminum. Now I read that it also has aluminum (it's marked "ammonium alum"). The crystal works great against odor, but I don ...

Q: I’ve always read labels carefully and avoided antiperspirants with aluminum. However, I thought that natural crystal deodorants containing potassium alum would be safe. After all, I’ve used alum ...

Did you know that alum is commonly known as 'fitkari'? Alum is a class of hydrated double sulphate salts. Alum is referred to as a double salt because it contains two different cations (like K⁺ and ...