Magnesium gluconate is the magnesium salt of gluconic acid used in skincare as a source of magnesium and as a skin-conditioning and humectant-supporting agent. It can help support skin barrier function and is sometimes included for its mild soothing properties.
| Reported effect | How often | Notes |
|---|---|---|
| Mild transient irritation or redness | Rare | Generally well tolerated; minor irritation possible in sensitive individuals. |
| Contact allergic reaction | Very rare | Allergic contact dermatitis is uncommon but theoretically possible. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.