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Stearyl Alcohol

Stearyl Alcohol, also known as 1-Octadecanol, is a long-chain monohydric fatty alcohol belonging to the fatty alcohols category. Unlike short-chain alcohols, due to its lower polarity, it is insoluble in water but soluble in many non-polar solvents. 

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Von NEUROtiker ⇌ - Eigenes Werk, Gemeinfrei, https://commons.wikimedia.org/w/index.php?curid=7230543

Uses in Cosmetics

Stearyl Alcohol offers a variety of effects and applications, including:

Acting as a non-ionic surfactant, stabilizing water-in-oil emulsions (W/O emulsions).
Often combined with other surfactants, such as Cetyl Alcohol (known as Cetearyl Alcohol), to enhance emulsification.
Commonly used as an ointment base in cosmetics, providing a good texture and spreadability to the product.


Natural sources include plants like Japanese Privet, Medicinal Angelica, Single-seeded Hawthorn, Kava, and Potatoes.
Industrially produced from fatty acids (mainly Stearic Acid) through the hydrogenation of fatty acid esters (Stearates).

Globally Harmonized System of Classification and Labelling of Chemicals 


Stearyl Alcohol is widely considered safe as a cosmetic ingredient, posing no harm to humans.


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