The names differ by one letter, which is a lot of responsibility to give a vowel on a skincare label.1
Squalane and squalene compared
| Difference | Squalene | Squalane |
|---|---|---|
| What it is | An oily compound naturally present in sebum, your skin's oil. | A saturated oil made by hydrogenating squalene. |
| Stability in skincare | Can become unstable and rancid. | Converted into a stable form for skincare use. |
| Skin benefits | Acts as an emollient, meaning it softens skin, and has antioxidant properties. | Used as a moisturizer to help retain moisture. |
Is squalene already in your skin?
Yes. Squalene is one part of sebum, alongside fatty acids, wax esters and other lipids, or fats. Sebum helps reduce water loss from the skin surface. The oil on your skin is not pure squalene: it also contains lipids from surface skin cells, sweat and environmental material. Sebum production declines with age, particularly after menopause, and the proportions of its ingredients can change with age and certain medicines.3
Does squalene have benefits too?
Squalene is not simply an unfinished skincare ingredient. It helps soften skin and has antioxidant activity, including scavenging reactive oxygen involved in damage to skin surface lipids. Its hydration benefits relate to reducing water loss: keeping water from escaping increases skin hydration. Squalane's practical advantage in a bottle is stability, rather than squalene having no useful role.12
Which should you choose?
Choose squalane for a moisturizing facial oil, especially if your skin still feels dry after moisturizer. Squalene occurs in both plants and animals, so look for explicitly plant derived squalane if you want a plant source. Check the actual ingredient name, because autocorrect is not a formulation chemist.1
How do you use squalane?
- 1Apply lighter products, such as a toner or serum, first.
- 2Layer squalane over them to help prevent moisture from leaving the skin.
Oily skin does not automatically rule out squalane: the ingredient is considered noncomedogenic, meaning it does not clog pores. The full formula still matters. Other oils can contribute to blocked pores, while fragrances, preservatives and dyes can trigger reactions in sensitive skin. Squalane can also be used alongside retinol; squalane itself does not contain retinol.1
Where this answer comes from
- 1Squalane: What It Is and Benefitshealth.clevelandclinic.org
- 2Biological and Pharmacological Activities of Squalene and Related Compounds: Potential Uses in Cosmetic Dermatologypmc.ncbi.nlm.nih.gov
- 3Sebumdermnetnz.org
