Hydrolysed hyaluronic acid is a low-molecular-weight, enzymatically fragmented form of hyaluronic acid used in skincare to attract and bind water, providing surface and superficial hydration. Its smaller size allows somewhat better penetration into the upper layers of the epidermis compared with high-molecular-weight hyaluronic acid.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient stinging or irritation | Uncommon | Usually associated with compromised skin barrier or accompanying formulation ingredients rather than the molecule itself. |
Redness or contact irritation | Rare | Generally low irritation potential; reactions often linked to other components such as preservatives. |
Allergic contact dermatitis or hypersensitivity | Very rare | Isolated case reports; hyaluronic acid is considered to have very low allergenic potential. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.