The mineral crystal of choice for crystal deodorant is potassium alum. Crystal deodorant packs a mean combo of benefits. When applied to the skin it is entirely invisible and leaves no sticky or oily residue on the skin. Furthermore, it provides 24-hour protection and is fragrance-free.
Potassium alum is found in deposits in the Earth’s crust typically in the South American Andes and near the Mediterranean Sea. When potassium alum is extracted from the earth it is a colourless, translucent crystalline stone, also known as a mineral crystal. Another more common mineral crystal that shares a similar appearance is quartz. Therefore, a truly natural crystal deodorant stone or stick that is made from unaltered potassium alum appears the same as the day it was extracted – colourless and translucent.