Squalane helps to support the outer layer of your skin, deeply softening and smoothing it out. It locks in moisture by creating a protective barrier to reduce dryness, dullness and irritation. It's a non-comedogenic ingredient, meaning it doesn't block pores. That makes squalane a good alternative to other oils for sensitive or breakout-prone skin.
Squalane is a natural fat in the body secreted by the sebaceous glands. It's a hydrogenated, more stable form of squalene (with an e). Squalane was previously a hotly debated ingredient as it came from shark liver. These days it usually comes from plant sources like olives and sugar cane.
Squalane is safe to use multiple times a day, and works with all skin types. It combines well with alpha hydroxy acids and retinol.