Squalane is a fully saturated, stable hydrocarbon derived from the hydrogenation of squalene, a naturally occurring triterpene found in plant oils (e.g., olive, amaranth, rice bran) and shark liver. Unlike squalene, squalane is non-oxidizing, non-comedogenic, and highly biocompatible with human skin, where it mimics the skin’s natural sebum. As a premium emollient and moisturizer, it is widely used in high-end skincare and personal care formulations for its exceptional spreading, softening, and barrier-repairing properties.