DM Water (demineralized water) is purified water with mineral ions removed via ion-exchange or reverse osmosis, used as the primary solvent and base for dissolving ingredients and forming the aqueous phase in cosmetic formulations. It is functionally inert and provides hydration and a vehicle for other actives.
| Reported effect | How often | Notes |
|---|---|---|
| Skin irritation or sensitivity | Very rare | Water itself is essentially non-irritating; rare reactions relate to contaminants or other formula components, not the water. |
| Transient skin dryness with frequent contact | Rare | Excessive wetting/evaporation can disrupt the skin barrier, but this is not specific to DM water. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.