A roll-on product, including magnesium hydroxide propanediol glycerin and glycine soja (soybean), is advantageously used as a deodorant and/or for transdermal magnesium delivery to the human body. Combinations of a magnesium source (especially magnesium hydroxide), with propanediol, and with glycerin and glycine soja (soybean) are advantageous for transdermal delivery of magnesium to the body via a roll-on product, a stick, a spray, a lotion, etc. Magnesium deficiency is addressed via products easily used by an ordinary consumer for dermal application.
