What it is
Fullerenes are a class of closed-cage carbon molecules, the most familiar being the roughly spherical C60. In cosmetics they are valued for their ability to scavenge free radicals, which is why they are described as antioxidant ingredients. They are typically supplied in solubilized or dispersed cosmetic-grade forms and used at low concentrations.
Safety & warnings
Cosmetic-grade fullerene preparations are formulated for topical use at low levels. As an engineered carbon material there has been general regulatory interest in nanomaterials, so reputable suppliers use purified, characterized grades. It is not a recognized fragrance allergen and is not an oil, so comedogenicity is not a typical concern.
Origin & sourcing
Synthetic; manufactured carbon nanomaterials produced and purified for cosmetic use, then formulated into water- or oil-dispersible carriers.
History
Fullerenes were discovered in the mid-1980s as a new form of carbon, work later recognized with a Nobel Prize in Chemistry, and were subsequently adapted into cosmetic-grade antioxidant ingredients, with notable adoption in the Japanese and Korean skin care markets.
Questions everyone asks
What are fullerenes used for in skin care?
They are used as antioxidant ingredients that help neutralize free radicals generated in the skin.
Are fullerenes natural or made in a lab?
Cosmetic fullerenes are manufactured and purified carbon nanomaterials supplied in solubilized forms for topical use.