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Squalene is an oily liquid that originally comes from shark liver but luckily it can also be found in a couple of plant oils. Olive (0.6%), peanut (0.1%) and pumpkin (0.35%) oils contain it, though not in huge amounts. 

What contains more of it, is the sebum (the oily stuff) that our skin produces. About 13% of human sebum is squalene, which means that it’s an important skin-identical ingredient and NMF (natural moisturizing factor)

Chemically speaking, it is an unsaturated (has double bonds) hydrocarbon (contains only carbon and hydrogen) molecule, that can undergo oxidation. On the pro side, this means that squalene can act as an antioxidant (while its no-double-bond version sister, squalane cannot) that might be useful for dry skin types, but on the con side, oxidized squalene (called squalene peroxide) is thought to be a strong acne-trigger, that makes squalene less ideal for acne-prone skin.

Having double bonds, and being prone to oxidation also means that squalene is a less stable molecule with shorter shelf life, so its more stable and awesome sister, squalane shows up more often on ingredient lists. Read about squalane here >>

Show me some proof

  • European Journal of Lipid Science and Technology, Volume 111 (5) – May 1, 2009, Squalene: A natural antioxidant?
  • Advances in food and nutrition research., 2012;65:223-33., Biological importance and applications of squalene and squalane.

Products with Squalene

Chanel Huile De Jasmine Cover fx Custom Infusion Drops F + Neroli Elizavecca Natural 90% Olive Cleansing Oil Omega Skin Lab Granactive Retinoid 1,5 In Squalene Serum Omega Skin Lab Retinol 0,5 Serum In Squalene Sisley Black Rose Precious Face Oil doa kozmetik Resveratrol Serum ARGANICARE Anti-Aging Cream ARGANICARE Firming Night Cream ARGANICARE Nourishing Hydrator ARGANICARE Nourishing Night cream Vitamine C ARGANICARE Supreme Hydrator Cream for dry skin Argani Care Anti-aging cream Cow Brand Beauty Soap Dekka Aceite Facial Dr's Secret Skinrecon T4 Frank Body Everyday Face Moisturizer Haba Labo Hydrating Lip Balm Jeuvenile Retinol In Squalene %1 + Hyaluronic Acid %1.5 + Panthenol %3 Cilt Serumu Lululun Precious Face Mask Green Manna Luxus Arcelixír MooGoo Blemish Cleansing Moisturiser Nancy K Brown All Purpose Cream Peptid+ Collagen Night Cream Skinmate Shark Oil the NewLab. Multi-Effect Age Defense Formula Face Serum ARGANICARE Olive Restoring & Firming Night Cream Amazinc! Mineral Sunscreen Lotion Spf 50 Antipodes Avocado Pear Nourishing Night Cream Antipodes Vanilla Pod Hydrating Day Cream Canvas Rose Otto 24-Hour Intense Hydrating Lotion Circadia Post Peel Balm Dewy & Bae Raw Glow Nourishing Face Serum Dr's Secret Eye Cream Frezyderm Moisturizing 24H Lonjevite Antioxidant Rejuvenating Serum Lululun Moist Gel Cream O'Care Love Moist Edelweiss Serum Pharmamel Mel13 Pipette Diaper Rash Cream TESSA Intense Vitamin C The Jojoba Company Ultimate Youth Potion Venusia Moisturizing Lotion Yara Botanica Age Perfect Facial Oil You & Oil Carrot Broccoli Chia Superfood for Skin Ahava Mineral Mud Brightening & Hydrating Mask Babyganics Daily Lotion Biologique Recherche Creme Contour Yeux Et Lèvres Biofixine Ceramiracle First Night The Serume Crown Shaving Co. Daily Face Moisturizer