I have being using potassium alum crystal deodorant for about a year now. I am paying £4.50 for a 125 gram rock/crystal. What am I looking for is a bulk version of this. Surely somewhere I must be able to source this in bulk and be set for life. Whilst the £4.50 crystal does last for months. I think it's very expensive consider how small it is, and how it is supposedly an abundant mineral salt.
