Ubiquinone (coenzyme Q10) is a lipid-soluble antioxidant naturally present in skin that helps neutralize free radicals and support cellular energy production. In topical formulations it is used to reduce oxidative stress and signs of photoaging.
| Reported effect | How often | Notes |
|---|---|---|
| Mild irritation or stinging | Rare | Transient sensation usually at higher concentrations or on sensitive skin |
| Allergic contact dermatitis | Very rare | Isolated case reports of contact sensitization |
| Redness or erythema | Rare | Generally mild and self-resolving |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.