In our reference data, Magnesium Oil can feed Malassezia (fungal acne).
Magnesium oil is a concentrated solution of magnesium chloride in water (not an actual oil), used topically as a source of magnesium and sometimes for soothing or hydrating claims. Evidence for meaningful transdermal magnesium absorption through intact skin is limited and inconsistent.
| Reported effect | How often | Notes |
|---|---|---|
| Tingling, itching or stinging sensation on application | Common | Especially on freshly shaved, broken, or sensitive skin; usually transient. |
| Skin dryness or salty residue | Common | Due to the high concentration of magnesium chloride salt; rinsing reduces it. |
| Mild redness or irritation | Uncommon | More likely with prolonged contact or on compromised skin barrier. |
| Contact dermatitis or allergic reaction | Rare | Reported infrequently; patch testing advised for sensitive individuals. |
| Systemic magnesium effects | Very rare | Unlikely with normal topical use and intact skin; theoretical concern in renal impairment or heavy use. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.