Sodium DNA is the sodium salt of deoxyribonucleic acid, typically derived from fish or plant sources, used in cosmetics as a water-binding humectant and conditioning agent that may help maintain skin hydration and barrier integrity. Marketing claims of significant anti-aging or repair effects are largely unsubstantiated by robust clinical evidence.
| Reported effect | How often | Notes |
|---|---|---|
Mild local irritation or stinging | Rare | Generally well tolerated; occasional transient irritation reported on sensitive skin. |
Contact allergic reaction | Very rare | Hypersensitivity is uncommon; reactions may relate to source material or formulation additives rather than the DNA itself. |
Redness or transient erythema | Rare | Typically minor and self-limiting. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.