$12.10

Euxyl K 903 Preservative

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euxyl™ k 903 preservative is a liquid preservative for personal care products, with strong, broad-spectrum effectiveness against bacteria, yeast and mold. This mild blend is compliant with many natural certification requirements.

features and benefits

  • strong broad spectrum efficacy
  • suitable for certified natural cosmetics
  • ideal solution for wet wipes
  • suitable for sensitive applications
  • mild, liquid blend 

The natural tocopherol in Euxyl® K 903 is GMO-free and complies with the criteria of NATRUE and COSMOS (including Ecocert) for natural products.

Euxyl® K 903 contains:

  • Benzyl Alcohol            78.0 - 84.0%
  • Benzoic Acid              11.0 - 13.0%
  • Dehydroacetic Acid     6.5 -   7.5%

While Euxyl® K 903 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.  Read the MSDS before use and follow recommended guidelines for handling, including Safety Goggles!


INCI: Benzyl Alcohol (and) Benzoic Acid (and) Dehydroacetic Acid (and) Tocopherol

Applications:  Leave-on products, Rinse-off products, Wet Wipes, Sensitive skin products.

pH 3 - 6
regulatory compliance Brazil, Canada, China, EU, Japan, Mexico, US
technologies without formaldehyde donor, without halogen, without isothiazolinones, without paraben, without phenoxyethanol
chemistry type with benzylalcohol, with organic acids


Including:  Highly aqueous products (oil in water emulsions - lotions and creams), room sprays, spritzers, toners, shampoo, conditioner and sugar scrubs (anhydrous).

  • Euxyl® K 903 is fully effective both in anionic as well as cationic and non-ionic systems
  • Euxyl® K 903 offers good head space protection in packaging
  • Euxyl® K 903 has limited solubility in water. 100g of water at 20°C will dissolve 1.2g of Euxyl® K 903.
  • Euxyl® K 903 exhibits no interaction with sulphite ions.
  • Euxyl® K 903, in the presence of iron ions, e.g. from mineral thickeners, yellow discoloration of a formulas was observed.
  • The recommended pH range for formulations is between pH 3 - 6.  Efficacy is increased by reducing the pH value of the final formulation. We recommend a pH of 5.0 or 5.5 or lower.
  • Prolonged heating periods greater than 176°F/80°C should be avoided.  It is advantageous to add Euxyl® K 903 in the cooling phase, e.g. with the fragrance, at less than 104°F/40°C.

Recommended use levels: 0.4% - 1.2% .
Appearance: Light yellow to dark yellow liquid (can vary batch to batch)
pH as supplied: 3.0 - 4.0 (10g/L @20°C/68°F)
Country of Origin: Germany
Density:  1.067--1.079 g/mL at @20°C/68°F
Storage: Store in a cool dry place out of direct sunlight. Should be stored at a temperature between 8-25°C (46 - 77°F)

DOWNLOAD SDS

DOWNLOAD COA LOT Eux90330979 

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