This 2010 study found that C60 prevents cells from turning into fat cells, in both mice and humans and may effectively help prevent weight gain. The effect of squalane-dissolved fullerene-C60 on adipogenesis-accompanied oxidative stress and macrophage activation in a preadipocyte-monocyte co-culture system

• Study strengths: C60 worked in both animal and human cells.
• Study weaknesses: This study was done with cells in vitro, in a test tube.