Magnesium chloride is a naturally occurring mineral compound found in seawater and ancient underground deposits, most famously harvested from the Zechstein seabed in the Netherlands. Unlike magnesium taken orally, magnesium chloride applied to the skin is absorbed transdermally — making it a popular choice for those who want to support healthy magnesium levels through their daily skincare routine rather than a supplement bottle.
For skincare and body care, magnesium chloride is prized for its ability to help relax muscles, support restful sleep, and promote a sense of calm when used in bath soaks and body sprays. It’s a key ingredient in magnesium-rich bath flakes, body butters, and topical “magnesium oil” sprays (which are actually a supersaturated solution, not a true oil). It also plays a supporting role in natural deodorant formulations, where it helps create an environment less hospitable to odor-causing bacteria.
Best Uses: Magnesium-rich bath soaks and body sprays; natural deodorants; after-workout body care; relaxing evening self-care routines.
