Deoxyguanosine is a nucleoside (a purine base linked to deoxyribose) sometimes included in skincare for its purported cell-signaling and skin-conditioning properties. Evidence for cosmetic benefit is limited, and it is more commonly studied in biochemistry than in dermatology.
| Reported effect | How often | Notes |
|---|---|---|
| Mild transient skin irritation or redness | Rare | Occasional localized irritation, generally resolving after discontinuation. |
| Contact sensitization or allergic reaction | Very rare | Isolated potential for hypersensitivity; not well documented in cosmetic use. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.