“we show that oral administration of C60 dissolved in olive oil (0.8 mg/ml) at reiterated doses (1.7 mg/kg of body weight) to rats not
only does not entail chronic toxicity but it almost doubles their lifespan.” … 2012 Elsevier Ltd
For the full report, click The prolongation of the lifespan of rats by repeated oral administration of [60] fullerene.