Squalane — Your Skin's Lightweight Moisture Shield

A stable, plant-derived oil that mimics your skin's natural sebum to deliver deep, non-greasy hydration. Found in over 6,100 products, Squalane is one of the most universally tolerated emollients for every skin type — including oily and acne-prone.

Data sources: EU CosIng (#38226), CIR Safety Assessment of Squalane and Squalene (Final Report 1982, reaffirmed 2001 & 2019), and SkinSenseDiary internal evaluation. Last updated: April 2026.

At a Glance

Also Known As
角鯊烷, Perhydrosqualene, Hydrogenated Squalene
CAS Number
111-01-3
CosIng Functions
Emollient, Skin Conditioning
Source
Plant-derived (olive, sugarcane) / Synthetic hydrogenation
Korean Name
스쿠알란
Regulation
No restrictions

What Is Squalane?

A lightweight, non-greasy oil that deeply moisturizes skin by mimicking the body's natural sebum. It absorbs quickly into skin to provide long-lasting hydration while helping to strengthen the skin barrier and improve overall skin texture. This ingredient is exceptionally well-tolerated by all skin types, including sensitive skin, with minimal risk of irritation or allergic reactions.


Squalane (INCI: Squalane, CAS 111-01-3) is a fully saturated hydrocarbon — the hydrogenated form of squalene, a triterpene naturally produced by human sebaceous glands. Squalene accounts for approximately 12% of human skin surface lipids and plays a key role in maintaining skin moisture and flexibility. However, squalene oxidizes rapidly when exposed to air, so the cosmetics industry uses squalane — its hydrogenated, shelf-stable counterpart. Historically derived from shark liver oil, modern squalane is predominantly sourced from plant-based feedstocks including olive oil, sugarcane, and rice bran through catalytic hydrogenation.


The CIR Expert Panel first assessed squalane and squalene in 1982 and concluded both are safe as used in cosmetics. This assessment was reaffirmed in 2001 and again in 2019. Animal studies showed squalene is slowly absorbed through the skin, while both compounds exhibit low acute toxicity by all routes. At 100% concentration, squalane was non-irritating to rabbit skin and eyes, and formulations containing squalene were not significant human skin irritants or sensitizers.

Benefits — 4 Key Roles

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Deep, Lasting Hydration

Squalane is an emollient that forms a thin, breathable layer on the skin surface, preventing trans-epidermal water loss (TEWL) while allowing skin to breathe. Unlike heavier oils, it provides sustained moisture without occlusion or a greasy film.

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Barrier Support

By integrating into the skin's lipid layer — the same environment where natural squalene resides — squalane reinforces the protective barrier. This helps shield skin from environmental stressors, pollutants, and dryness.

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Lightweight & Non-Comedogenic

Squalane's molecular structure closely mimics human sebum, so it absorbs rapidly without clogging pores. It's one of the few oils widely recommended for oily and acne-prone skin because it provides moisture without contributing to breakouts.

Smoother, Softer Skin

Regular use of squalane visibly improves skin texture by filling in rough patches and fine lines caused by dehydration. Its emollient properties leave skin feeling supple and smooth, with a natural, healthy-looking radiance.

Suitable for: All skin types — including oily, acne-prone, dry, sensitive, and mature skin.

Safety Rating: 1/10 (Low Hazard)

1
/ 10

Safe as Used

The CIR Expert Panel (1982, reaffirmed 2001 & 2019) concluded that Squalane is safe as used in cosmetics at present practices and concentrations. EU approved with no restrictions. A skin-identical lipid with an outstanding safety profile.

Evidence
CIR Assessment
Safe as Used (1982/2001/2019)
CIR assessed Squalane and Squalene together. Low acute toxicity by all routes. Non-irritating to rabbit skin and eyes at 100%. Not a significant human skin irritant or sensitizer. Squalene is a natural component of human sebum.
EU Regulation
No Restrictions
Not listed in Annex II (prohibited), III (restricted), or IV. Registered in CosIng as #38226. EU-wide unrestricted use in cosmetics.
Allergen & Sensitivity
No Known Allergens
No allergen tags in our database. No GHS hazard codes. Non-irritating at 100% concentration. Not sensitizing in human clinical testing. Skin-identical lipid naturally present in human sebum.
CosIng
Approved Functions
Emollient · Skin Conditioning. EU CosIng approved functions. Squalane softens and smooths the skin while helping to maintain its natural moisture balance.

Things to Know

While squalane is one of the most universally tolerated oils, always patch-test any new product if you have highly reactive skin. The ingredient itself is well-documented as non-irritating, but formulation vehicles or co-ingredients may affect tolerance.

Look for "plant-derived squalane" or "olive-derived squalane" on labels if you prefer sustainable sourcing. Modern squalane is predominantly plant-based (olive, sugarcane), not shark-derived.

Squalane is highly stable and resistant to oxidation — unlike squalene. This means products containing squalane have a longer shelf life and do not require special storage conditions.

Pregnancy & Nursing

Squalane is the hydrogenated form of squalene, a lipid naturally present in human sebum at all life stages. The CIR safety assessment found low toxicity by all routes, no significant skin irritation or sensitization, and both compounds are poorly absorbed from the gastrointestinal tract. It is widely regarded as safe during pregnancy and nursing. Always consult your healthcare provider for personal advice.

Safety data compiled from CIR Safety Assessment of Squalane and Squalene (1982, reaffirmed 2001 & 2019), EU CosIng Database, and SkinSenseDiary internal analysis. This is for educational purposes only and does not constitute medical advice. Last updated: April 2026.

How to Use

1

Cleanse & Tone

Start with a clean face. Apply your toner, essence, or any water-based treatments first. Squalane works best as a sealing layer applied after water-based steps.

2

Apply Squalane

Warm 2–3 drops of squalane oil between your palms and press gently onto slightly damp skin. For serums or moisturizers containing squalane, apply as directed. Its lightweight texture absorbs within seconds without residue.

3

Layer or Use Alone

Squalane can be the final step in your routine (sealing in all previous layers) or mixed into your moisturizer for a hydration boost. In the morning, follow with sunscreen. At night, it can serve as your last step to lock in actives.

Product Formats

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Pure Oil

100% squalane oil is the most popular format — lightweight, fast-absorbing, and versatile. Can be used alone, mixed with other products, or applied to hair and cuticles.

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Moisturizer / Cream

Many moisturizers include squalane as a key emollient. Look for it in the top half of the ingredient list for meaningful concentration. Great for a one-step routine.

🧼

Cleanser / Cleansing Oil

Squalane-based cleansing oils dissolve makeup and sunscreen effectively while being gentle on the skin barrier. They rinse cleanly without stripping moisture.

Pairing Guide

Great Pairings

Hyaluronic Acid

HA draws moisture into the skin; squalane seals it in. Apply HA to damp skin first, then layer squalane on top for maximum hydration — the classic humectant + emollient combination.

Retinol

Squalane buffers the dryness, peeling, and irritation that retinol can cause. Apply retinol first, then layer squalane to protect the barrier during retinoid therapy.

Vitamin C (L-Ascorbic Acid)

Squalane helps stabilize and deliver lipophilic Vitamin C. Apply your Vitamin C serum first, then seal with squalane to prevent oxidation and enhance absorption.

Ceramides

Squalane + ceramides together recreate the skin's natural lipid environment. Ceramides repair the barrier structure while squalane provides the emollient seal — excellent for dry and compromised skin.

Use with Care

Heavy Occlusive Oils (Petrolatum, Mineral Oil)

Layering squalane under very heavy occlusives can feel unnecessarily greasy since squalane itself provides a light occlusive seal. Choose one or the other depending on how dry your skin is.

Multiple Oils Simultaneously

Combining squalane with several other facial oils at once can overload the skin, especially for oily types. Squalane alone is usually sufficient as the oil step in your routine.

Popular Products

Featured products containing Squalane. Total products: 6,163

The Ordinary
100% Plant-Derived Squalane
Face Oil
Biossance
Squalane + Vitamin C Rose Oil
Face Oil
Drunk Elephant
Virgin Marula Luxury Facial Oil
Face Oil
ILIA
Super Serum Skin Tint SPF 40
Foundation
Kiehl's
Ultra Facial Cream
Moisturizer
Peter Thomas Roth
Water Drench Cloud Cream
Moisturizer

Frequently Asked Questions

Is Squalane safe for sensitive skin?
Yes. Squalane has a SkinSenseDiary safety rating of 1/10 (Low Hazard). The CIR Expert Panel concluded Squalane is safe as used in cosmetics. It is the hydrogenated form of squalene, a lipid naturally produced by your own skin. At 100% concentration it was non-irritating to rabbit skin and eyes, and not a significant human skin sensitizer. No known allergen flags or GHS hazard codes.
Can I use Squalane every day?
Yes. Squalane is non-comedogenic and safe for daily use, morning and night. As a hydrogenated form of your skin's own squalene, it is exceptionally well-tolerated with repeated use. The CIR assessment found low acute toxicity by all routes and no adverse effects from regular application. It absorbs quickly without a greasy residue, making it practical for everyday routines.
Can I use Squalane with Retinol?
Yes, and it's a great combination. Squalane acts as an occlusive emollient that helps lock in moisture and reduce the dryness and peeling that retinol can cause. Apply retinol first on dry skin, wait a few minutes, then layer Squalane on top to buffer irritation and keep the skin barrier protected.
Is Squalane safe during pregnancy?
Squalane is the hydrogenated form of squalene, a lipid naturally present in human sebum at all life stages. The CIR safety assessment found low toxicity by all routes and no sensitization concerns. It is widely regarded as safe during pregnancy and nursing. However, always consult your healthcare provider for personal advice.
What is the difference between Squalane and Squalene?
Both come from the same molecule, but Squalene (with an 'e') is the unsaturated, natural form found in human sebum and olive oil. It oxidizes quickly when exposed to air, making it unstable in skincare products. Squalane (with an 'a') is the hydrogenated, saturated version — it's chemically stable, won't oxidize, and has a longer shelf life. Both provide similar moisturizing benefits, but Squalane is the preferred form in cosmetics.
Is Squalane comedogenic — will it clog pores?
Squalane is widely considered non-comedogenic. Its molecular structure closely mimics human sebum, so it absorbs readily into skin without sitting on top and clogging pores. It is commonly recommended for oily and acne-prone skin types precisely because it provides moisture without contributing to breakouts.

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