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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), but on the con side, squalene is less stable and has a shorter shelf life.

This is probably the main reason why its no-double bond and hence more stable 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

Azarine Miracle Oil Serum 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 Peachytonics Dew Drops 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 Carline Multi Effect Night Cream Carter + Jane Balance Cleansing Oil Cow Brand Beauty Soap Dekka Aceite Facial Dermena Krem Z Bakuchiolem Dr's Secret Skinrecon T4 FRULATTE Nourishing Night Cream Frank Body Everyday Face Moisturizer Grace Derma Healthcare Cerasoft Imf Cream 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 Pure Heaven Green Tea & Comfrey Eye Serum Skin Juice Star Quencher Skinmate Shark Oil illari skin Vitamin K Recovery the NewLab. Multi-Effect Age Defense Formula Face Serum ARGANICARE Olive Restoring & Firming Night Cream Adisha Torre Lift And Repair Complex Amazinc! Mineral Sunscreen Lotion Spf 50 Amlactin Daily Vitamin C Lotion 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 Doll Face Nourish Anti-Oxidant Protective Moisturizer Dr's Secret Eye Cream Frezyderm Moisturizing 24H Jones Road Beauty Oil-free Moisturizer La Roche-Posay Toleriane Sensitive Creme (America)