What is Squalane?
Discover Squalane, a highly effective and gentle emollient that mimics your skin's natural oils, offering deep hydration and barrier support without feeling heavy.
The Basics
Squalane is a stable, saturated hydrocarbon derived from squalene, a lipid naturally produced by our skin cells. While squalene is prone to oxidation, squalane is created through a hydrogenation process (adding hydrogen atoms) that makes it much more stable and suitable for skincare formulations. It is a clear, odorless oil that functions as an excellent emollient, meaning it helps to soften and smooth the skin by preventing moisture loss.
Key Benefits
Intense Hydration
Well-studied. Squalane forms a lightweight, breathable barrier on the skin's surface, effectively locking in moisture and reducing transepidermal water loss (TEWL). This helps keep the skin plump, soft, and hydrated throughout the day.
Skin Barrier Support
Well-studied. By mimicking the skin's natural sebum, squalane helps to replenish and strengthen the skin's lipid barrier. A healthy barrier is crucial for protecting the skin from environmental aggressors and maintaining overall skin health.
Non-Comedogenic
Well-studied. Despite being an oil, squalane is non-comedogenic, meaning it's highly unlikely to clog pores. This makes it suitable for most skin types, including oily and acne-prone skin.
Softening and Smoothing
Well-studied. Its emollient properties help to improve skin texture, making it feel smoother and more supple. It can reduce the appearance of dry patches and fine lines caused by dehydration.
Antioxidant Properties
Limited evidence. While squalene (the precursor) has antioxidant properties, the hydrogenation process to create squalane largely removes these. Some studies suggest a very mild antioxidant effect in squalane, but it is not its primary benefit in skincare.
How It Works
Squalane works by acting as an occlusive and emollient agent. As an occlusive, it creates a protective, non-greasy film on the skin's surface, which physically prevents water from evaporating. As an emollient, it fills in the gaps between skin cells, smoothing the skin's texture and making it feel softer and more pliable. Its molecular structure is very similar to the skin's natural lipids, allowing it to integrate seamlessly into the skin's barrier, enhancing its function and preventing moisture loss.
Effective Dose
Squalane is often sold as a 100% pure oil, which can be used directly on the skin. In formulated products, it is effectively used in concentrations ranging from 1% to 20% or even higher, depending on the desired richness and product type. Even at lower percentages, it contributes significantly to a product's emollient properties.
Who Benefits
- Individuals with dry or dehydrated skin
- People with sensitive or easily irritated skin
- Those with mature skin looking to improve suppleness and reduce the appearance of fine lines
- Individuals with normal skin seeking lightweight, non-greasy hydration
- People with oily or acne-prone skin who need moisturization without clogging pores
Who Should Avoid
- None known for cosmetic-grade squalane, as it is exceptionally well-tolerated and rarely causes irritation or allergic reactions.
Common Side Effects
- Squalane is widely regarded as non-irritating and non-sensitizing. Adverse reactions are extremely rare and, when they occur, are typically attributed to other ingredients in a product formulation or an individual's unique sensitivities rather than the squalane itself.
Works Well With
- Hyaluronic Acid (for enhanced hydration)
- Retinoids (to mitigate potential dryness and irritation)
- Vitamin C (for antioxidant synergy and barrier support)
- Niacinamide (for barrier strengthening and soothing)
- AHAs/BHAs (to soothe and moisturize after exfoliation)
- Peptides (for overall skin health and anti-aging benefits)
Avoid Combining With
- None. Squalane is a highly stable and inert ingredient that pairs well with virtually all other skincare actives without adverse interactions.
People Also Ask
Is squalane good for acne-prone skin?
Yes, squalane is generally considered excellent for acne-prone skin. It is non-comedogenic, meaning it won't clog pores, and its lightweight moisturizing properties can help balance oil production and prevent the skin from overcompensating with more oil when it's dry.
Can I use squalane every day?
Absolutely. Squalane is a gentle, well-tolerated ingredient that can be used daily, both morning and night, as part of your regular skincare routine. It's often applied as the last step in a routine to seal in moisture.
Is squalane safe during pregnancy?
Yes, squalane is widely considered safe for use during pregnancy and breastfeeding. It's a natural component of the skin and a very gentle, non-toxic ingredient. However, always consult with your healthcare provider for personalized advice.
What's the difference between squalane and squalene?
Squalene is a lipid naturally produced by our skin and found in various plant and animal sources. It's highly unstable and oxidizes quickly when exposed to air. Squalane is squalene that has undergone a hydrogenation process, making it a stable, saturated form that is much more resistant to oxidation, odorless, and ideal for use in skincare products.
Where does squalane come from?
Historically, squalene was sourced from shark liver oil. However, due to ethical and environmental concerns, the vast majority of squalane used in modern cosmetics is now plant-derived, primarily from olives, sugarcane, and rice bran. These plant-based sources are sustainable and equally effective.
Bottom Line
Squalane is a highly effective, gentle, and versatile emollient that offers significant benefits for almost all skin types. Its ability to deeply hydrate, strengthen the skin barrier, and provide a non-comedogenic finish makes it an excellent choice for anyone seeking improved skin health, softness, and suppleness. It's a reliable staple for maintaining skin moisture and integrity.
References
- 1.FDA Drug Label — Biossance Squalane and Zinc Sheer Mineral Sunscreen Broad Spectrum SPF 30
FDA DailyMed: Biossance Squalane and Zinc Sheer Mineral Sunscreen Broad Spectrum SPF 30 · FDA
- 2.Biological importance and applications of squalene and squalane.
Kim SK, Karadeniz F, Advances in food and nutrition research, 2012 · PubMed
- 3.Squalene and squalane emulsions as adjuvants.
Allison AC, Methods (San Diego, Calif.), 1999 · PubMed
- 4.Recent Progress in Microalgal Squalene Production and Its Cosmetic Application.
Yarkent Ç, Oncel SS, Biotechnology and bioprocess engineering : BBE, 2022 · PubMed
- 5.Reduction of dioxins and polychlorinated biphenyls (PCBs) in human body.
Mochida Y, Fukata H, Matsuno Y, et al., Fukuoka igaku zasshi = Hukuoka acta medica, 2007 · PubMed
- 6.Vesicular and Planar Membranes of Archaea Lipids: Unusual Physical Properties and Biomedical Applications.
Chong PL, Chang A, Yu A, et al., International journal of molecular sciences, 2022 · PubMed
Products Containing Squalane
Evidence-based ingredient information. Not a substitute for individualized medical advice.