Mineral water is purified water containing dissolved minerals such as calcium, magnesium, and trace elements, used primarily as a solvent and hydrating base in skincare formulations. It carries and disperses other ingredients rather than acting as a therapeutic active.
| Reported effect | How often | Notes |
|---|---|---|
| Skin irritation | Rare | Generally inert; irritation is uncommon and usually related to other formula ingredients rather than the water itself. |
| Allergic/sensitivity reaction | Very rare | Mineral content is typically too low to provoke reactions in most users. |
| Transient skin dryness or tightness | Rare | Hard water with high mineral content may contribute to a tight feeling in some sensitive individuals. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.