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A naturally occurring compound found in shark liver as well as many plant-based oils. It has anti-aging and anti-fungal properties and is easily absorbed by skin.

Squalene (Wikipedia)
Not to be confused with squalane.
Skeletal formula of squalene
Spacefill model of squalene
Ball and stick model of squalene
Systematic IUPAC name
111-02-4 YesY
3DMet B00166
ChEBI CHEBI:15440 YesY
ChEMBL ChEMBL458402 YesY
ChemSpider 553635 YesY
EC Number 203-826-1
Jmol 3D image Interactive graph
KEGG C00751 N
MeSH Squalene
PubChem 638072
RTECS number XB6010000
Molar mass 410.73 g·mol−1
Appearance Pale yellow, translucent liquid
Density 0.858 g cm−3
Melting point −5 °C (23 °F; 268 K)
Boiling point 285 °C (545 °F; 558 K) at 3.3 kPa
log P 12.188
Viscosity 12 cP (at 20 °C)
NFPA 704
Flammability code 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g., canola oilHealth code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentineReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
Flash point 110 °C (230 °F; 383 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
Infobox references

Squalene is a natural 30-carbon organic compound originally obtained for commercial purposes primarily from shark liver oil (hence its name), although plant sources (primarily vegetable oils) are now used as well, including amaranth seed, rice bran, wheat germ, and olives. It is also found in high concentrations in the stomach oil of birds in the order Procellariiformes. All plants and animals produce squalene as a biochemical intermediate, including humans.

Squalene is a hydrocarbon and a triterpene, and is a natural and vital part of the synthesis of all plant and animal sterols, including cholesterol, steroid hormones, and vitamin D in the human body.

Squalene is used in cosmetics, and more recently as an immunologic adjuvant in vaccines. Squalene has been proposed to be an important part of the Mediterranean diet as it may be a chemopreventive substance that protects people from cancer.

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