Squalane is a skin lipid that acts as both an emollient (moisturizer) and antioxidant, helping with hydration. The research confirms it's naturally found in several plant oils like olive, wheat germ, and rice bran—not just shark liver oil—and can be used in skincare formulations to support skin barrier function.

This was a literature review article that examined both lab-based (in vitro) and real-world (in vivo) studies on squalene and related compounds to assess their effects on skin.

Funding not disclosed in abstract