Euxyl® K 900

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CAS#: 100-51-6, 70445-33-9

Euxyl® K 900 is a liquid cosmetic preservative based on benzyl alcohol and ethylhexylglycerin. The addition of ethylhexylglycerin affects the interfacial tension at the cell membrane of microorganisms, improving the preservative activity of benzyl alcohol. Its use is permitted both in products that remain on the skin as well as in rinse-off products. Euxyl® K 900 has a broad, balanced spectrum of effect against bacteria, yeasts and mold fungi.

Euxyl® K 900 is equally effective against bacteria, yeasts and mold fungi. It is a typically biostatic product with the biocidal properties necessary for practical use.

Euxyl® K 900 is stable to hydrolysis, temperature and pH.  It is effective in pH ranges up to 12.

Euxyl® K 900 has good chemical compatibility with anionic surfactants such as sulphates, ether sulphates and sulphosuccinates, as well as with non-ionogenic surfactants.  Ethoxylated surfactants may lead to a loss of effectiveness.

The  tocopherol in Euxyl® K 900 is GMO-free and complies with the criteria of NATRUE and COSMOS (including Ecocert) for natural products.


Euxyl® K 900 is recommended for use in multiple personal care products including shower gels, shampoos, body washes, creams, lotions, and wet wipes.  It is not suitable for anhydrous products. 

    Euxyl® K 900 contains:

    • Benzyl Alcohol            
    • Ethylhexylglycerin*     
       *Stabilized with synthetic alpha-tocopherol       

    While Euxyl® K 900 is classified as a "mild" preservative as formulated, the raw material should be handled with care as the full strength preservative causes severe eye irritation and may cause tissue damage.

    INCI: Benzyl Alcohol (and) Ethylhexylglycerin

    Shipping Information: 

    California Prop 65 Statement: The following statement is made in order to comply with the California Safe Drinking Water and Toxic Enforcement Act of 1986. This product is not known to the State of California to cause cancer, birth defects or other reproductive harm.

    • Euxyl® K 900 is fully effective both in anionic as well as cationic and non-ionic systems
    • Euxyl® K 900 offers good head space protection in packaging
    • Euxyl® K 900 has limited solubility in water. 100g of water at 20°C will dissolve 1.0g of Euxyl® K 900.
    • Euxyl® K 900 exhibits no interaction with sulphite ions.
    • Euxyl® K 900 displays good compatibility with cosmetic ingredients. No discoloration has been observed.
    • Euxyl® K 900 is effective in pH ranges up to 12
    • Euxyl® K 900 has a maximum use temperature of > 100°C

    Recommended use levels: 0.5% - 1.0%.
    Appearance: Colorless to light yellow liquid
    Solubility: In water euxyl® K 900 is only limitedly soluble. 100 g water at 20 °C dissolve approx. 1 g euxyl® K 900. In the polar solvents such as 1,2-propylene glycol, glycerol, triethylene glycol, 2-phenoxyethanol euxyl® K 900 is unlimitedly soluble. In non-polar solvents it is only limitedly soluble, in pure hydrocarbons it is practically insoluble.
    pH as supplied: @ 5.0 (10g/L)
    Density: 1.030 - 1.041 g/cm3
    Country of Origin: Germany
    Storage: Store in a cool dry place out of direct sunlight. Should be stored at a temperature between 8-25°C (46 - 77°F)

    Try out one of these formulations using this ingredient:

    Palm-free, Natural Body Cream

    Simple Hair Conditioning Rinse

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