Sodium hyaluronate is the sodium salt of hyaluronic acid, a glycosaminoglycan that attracts and binds water to hydrate and plump the skin. It is widely used in moisturizers and serums to improve surface hydration and temporarily reduce the appearance of fine lines.
| Reported effect | How often | Notes |
|---|---|---|
| Mild transient stinging or redness on application | Uncommon | Usually self-limiting and more likely on compromised or sensitive skin. |
| Dryness or tightness in low-humidity environments | Uncommon | Humectants can draw moisture from skin if not sealed with an occlusive in dry air. |
| Contact irritation or allergic dermatitis | Rare | Reactions are typically attributed to other formulation components rather than hyaluronic acid itself. |
| Hypersensitivity reactions | Very rare | Documented mainly with injectable forms; topical sensitization is exceptionally uncommon. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.