Squalane: The lightest oil with maximum tolerance
Not every oil is created equal. Squalane is the only one that is tolerated by almost all skin types – and there are biochemical reasons for this.
Squalane is the hydrogenated, stable form of squalene – a lipid naturally found in human sebum. It makes up about 12–15% of skin sebum, making it skin-identical. Through hydrogenation, squalene becomes squalane: oxidation-stable, odorless, liquid at room temperature, and with an exceptionally light texture.
Squalene vs. Squalane: The Important Difference
Squalene (without "a") is the natural, monounsaturated hydrocarbon in the body. It is unstable and oxidizes quickly when exposed to air – oxidized squalene is comedogenic and has been linked to acne. Squalane (with "a") is the hydrogenated form: fully saturated, oxidation-stable, odorless, and long-lasting. This stability makes it ideal for topical formulations.
Why Squalane is so well-tolerated
Since squalene is a natural component of skin sebum, the skin's immune system recognizes squalane as "self" and does not react with immune responses. This biocompatibility explains its exceptional tolerance. It penetrates the skin easily, leaves no greasy feeling, and enhances the effect of other active ingredients as a vehicle.
Skin-identical is not a marketing claim for squalane – it's biochemistry. The skin recognizes this molecule.
Non-comedogenic: Truth and Myth
Squalane is considered non-comedogenic – it does not clog pores. This is due to its molecular size and structure, which makes it easily spreadable and quickly absorbed without blocking pore channels. For acne-prone skin, it is one of the few oils that can be used without problems. Important: Squalane (with "a") – not Squalene (without "a"). Oxidized squalene is the actual pore-clogger.
Plant-based Sources
Traditionally, squalene was extracted from shark liver oil – an ethically questionable practice. Today, cosmetic squalane primarily comes from olive oil (olive squalane) or sugarcane fermentation (sugarcane squalane). Both sources provide identical molecular quality, are sustainable, and cruelty-free.
Application and Synergies
Squalane can be used pure as a face oil, as the last step in a routine (occlusion), as an additive to other products, or as a vehicle for other active ingredients. It improves the penetration of hydrophilic active ingredients and enhances the moisturizing effect of hyaluronic acid as a covering layer.
Frequently Asked Questions
Can I also use squalane on oily skin?
Yes. Squalane is non-comedogenic and does not affect sebum production. It provides lipids without burdening the pores and, in small amounts, even has a slightly balancing effect.
What is the difference between squalane and jojoba oil?
Jojoba oil is technically not an oil but a wax ester and behaves differently in formulation. Squalane is purer, lighter, and generally better tolerated by reactive skin.
Can squalane replace retinol or vitamin C?
No – squalane is a lipid without the cell-biological effects of retinol or vitamin C. It is an excellent support ingredient, not an active.
Conclusion
Squalane is the oil for those who avoid oils. Its purity, biocompatibility, and versatility make it an uncomplicatedly valuable component of any serious routine.
- Huang, Z.R. et al. (2009). Biological and pharmacological activities of squalene and related compounds. Natural Product Reports.
- Popa, O. et al. (2015). Biotechnological and pharmaceutical applications of squalene. Scientific Papers: Animal Science and Biotechnologies.
- Smith, W.P. (1996). Comparative effectiveness of alpha-hydroxy acids on skin properties. International Journal of Cosmetic Science.
