Squalane is a saturated version of squalene, a compound that naturally makes up 13% of your skin's sebum. Research shows it has moisturizing and emollient properties, plus antioxidant benefits—though most evidence so far comes from lab and animal studies, not human trials.

This was a review of existing research on squalene and squalane, examining studies on their sources (fish oils, some plant oils) and reported biological activities across various research environments.

Funding not disclosed in abstract