Idebenone is a powerful synthetic antioxidant (similar to CoQ10) that's promising for anti-aging, but it has a major problem: it doesn't absorb well into skin or your body because it's not water-soluble. Researchers tested various delivery methods—like wrapping it in liposomes and nanoparticles—to make it actually work when you apply it topically, with some approaches showing real improvement in effectiveness.
This was a review article that summarized existing research on Idebenone's properties and effectiveness. The authors analyzed different strategies scientists have tested to solve Idebenone's absorption problem, including various nanoparticle and chemical modification approaches.
Funding not disclosed in abstract