Squalene
Squalene is a naturally occurring lipid that is found in human sebum (skin oil), as well as in certain plants and shark liver oil. It plays an essential role in maintaining the skin’s moisture barrier, providing lubrication, and protecting against environmental damage. In skincare, squalene is often used in its more stable form, squalane, which resists oxidation and offers similar benefits with a longer shelf life.
As a skin-identical compound, squalene is highly biocompatible, meaning it is readily absorbed without causing irritation. It is commonly used in moisturisers, serums, facial oils, and cleansers to enhance hydration, soften the skin, and improve texture. Its lightweight, non-greasy nature makes it suitable for all skin types, including oily and acne-prone skin.
❓What It Does in Skincare
- Provides lightweight, non-comedogenic hydration that helps soften and smooth the skin.
- Supports the skin’s natural lipid barrier, helping to prevent moisture loss and dryness.
- Has antioxidant properties that help protect against environmental stressors and oxidative damage.
- Soothes and calms irritation, making it beneficial for sensitive or compromised skin.
- Improves suppleness and elasticity by enhancing skin hydration and flexibility.
- Compatible with a wide range of ingredients and suitable for layering with actives like retinoids and acids.
🧬Safety & Toxicology
- Extremely well-tolerated by all skin types, including sensitive, acne-prone, and eczema-prone skin.
- Non-irritating, non-sensitising, and non-comedogenic.
- Biocompatible with human skin due to its natural presence in sebum.
- Plant-derived squalene (from olives, sugarcane, or rice bran) is commonly used in modern formulations and considered sustainable and ethical.
- Stable form (squalane) is resistant to oxidation and maintains effectiveness over time.
- No known systemic toxicity or long-term safety concerns when used topically.