Magnesium is a mineral used in topical skincare for its purported barrier-strengthening, anti-inflammatory, and soothing effects, often present in salts such as magnesium chloride, sulfate, or magnesium ascorbyl phosphate. It may help support skin hydration and reduce irritation, though robust clinical evidence is limited.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation or stinging | Uncommon | More likely with higher concentrations or on compromised/broken skin. |
Dryness | Rare | Certain magnesium salts may have a mild drying effect. |
Allergic contact dermatitis | Very rare | Hypersensitivity reactions are uncommonly reported. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.