Squalane in Skincare: What Is It?
Squalane is one of those ingredients that keeps turning up in facial care, from lightweight oils to rich balms. But what is squalane actually, how is it different from squalene and why is it so popular in skincare? Here is a clear overview without the marketing hype.
In short
Squalane is the hydrogenated, stable form of squalene, a lipid that is also a natural part of the skin's own sebum. Hydrogenation makes it resistant to oxygen, so it keeps far longer. In skincare, squalane works as a lightweight, fast-absorbing emollient that leaves skin feeling supple without heaviness.
What is squalane?
Squalane is a colourless, almost odourless oil. Chemically it is a hydrocarbon, a molecule made only of carbon and hydrogen. On an ingredient list (INCI) you will see it as Squalane.
In cosmetics, squalane is classed as an emollient, an ingredient that smooths the skin's surface and makes it feel soft. Unlike many heavier oils, squalane leaves hardly any film and absorbs quickly. That makes it a versatile building block for all kinds of skincare products.
- Ingredient group: hydrocarbon, emollient
- Texture: thin, lightweight oil
- Scent and colour: almost odourless, colourless
- Key trait: very stable against air and light
Squalene or squalane: what is the difference?
The two names differ by a single letter, but the difference matters. Squalene is a naturally occurring lipid. Our skin produces it itself as part of its sebum, and it is also found in some plant oils, such as olive oil.
The catch: squalene is unsaturated. It contains several double bonds, which makes it react readily with oxygen. It oxidises quickly, turns rancid and is therefore hard to keep stable in cosmetic products.
This is where hydrogenation comes in. The double bonds are saturated with hydrogen, turning squalene into squalane: a saturated, stable molecule that barely oxidises at all.
| Feature | Squalene | Squalane |
|---|---|---|
| Chemical structure | Unsaturated (with double bonds) | Saturated (hydrogenated) |
| Where it occurs | Naturally in sebum and some plant oils | Made from squalene |
| Shelf stability | Oxidises quickly | Very stable |
| Use in cosmetics | Rare | Widespread |
Where does squalane come from?
Squalene used to be obtained mainly from shark liver oil. Today, the raw material for cosmetics often comes from plant sources such as olives or sugar cane. Chemically, the finished squalane is the same whatever its source. If origin matters to you, check the product information or simply ask the manufacturer.
What does squalane do in skincare?
Squalane is above all a skin-feel ingredient. It spreads easily, leaves skin soft and supple and helps keep moisture in by caring for the skin's surface. Because squalene already occurs in sebum, many people find squalane particularly pleasant and uncomplicated.
It also helps on the formulation side: because squalane is so stable, it contributes to a product keeping a consistent texture and scent over time. Formulators also like it because it makes rich fats such as beef tallow easier to spread.
Squalane combined with beef tallow
Grass-fed beef tallow consists mainly of triglycerides with oleic, palmitic and stearic acid and is fairly firm and rich. Squalane is the opposite: thin and light. Together they create a texture that nourishes yet absorbs quickly. That is exactly why squalane is popular in day care that should not feel heavy under makeup or before heading out.
Which skin types is squalane suitable for?
Squalane is considered very versatile and is well received by many skin types:
- Dry skin: appreciates the supple feel without a greasy film.
- Combination skin: often gets on well with the light texture.
- Sensitive skin: squalane itself is scent-neutral, but check the other ingredients in a product.
- Oily skin: squalane alone is light, but combined with rich fats a product can still be very nourishing. Start sparingly.
Note: A single ingredient tells you nothing about how well a whole product suits you. If a product contains essential oils such as tea tree oil, do a patch test before first use: apply a little to the inside of your elbow and wait 24 hours. For any skin condition, please see a dermatologist.
How do you use skincare with squalane?
Pure squalane oil can be applied drop by drop or mixed into a cream. In a finished balm it is already blended in. Take a pea-sized amount, warm it briefly between your fingertips and massage it into cleansed skin on your face and neck. In the morning, a light day product with squalane makes a good base, and you should add sun protection during the day.
Tip: Apply rich care with squalane to slightly damp skin, for example right after patting your face dry. It spreads more evenly that way and a smaller amount goes further. If your skin still looks shiny after a few minutes, use less next time.
Primal Gems
Tallow Day Balm · Revitalize & Protect
A water-free day balm with grass-fed beef tallow, squalane, grapeseed oil, vitamin E and tea tree oil. It absorbs quickly and supports the skin barrier against cold, wind and dry heating air.
View productFrequently asked questions
Is squalane an oil or a fat?
Squalane is a liquid oil and chemically a hydrocarbon. It is not a triglyceride like most plant oils or beef tallow, but on the skin it behaves much like a very light skincare oil.
Does squalane go rancid?
Thanks to hydrogenation, squalane is very stable and barely oxidises. A product contains several ingredients, though, so always follow the stated shelf life after opening.
Can I combine squalane with other skincare products?
Yes, squalane works well with most skincare products. As a rule of thumb, apply light, watery products first and oil-based, rich products last.
Does squalane have a scent?
Pure squalane is almost odourless. Any scent in a product therefore comes from other ingredients, such as essential oils.
