Fullerenes are carbon-based spherical molecules used in skincare as potent free-radical scavengers, valued for their ability to neutralize reactive oxygen species and provide antioxidant protection against environmental and UV-induced oxidative stress. They are studied for potential anti-aging and skin-brightening effects.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation | Rare | Occasional transient redness or stinging reported, generally formulation-dependent. |
| Allergic contact dermatitis | Very rare | Isolated sensitivity reactions; overall low irritation potential in cosmetic studies. |
| Concerns over nanoparticle penetration and bioaccumulation | Rare | Theoretical safety questions raised in research regarding nanomaterial behavior, though topical penetration appears limited. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.