Skip to Content

Euxyl K 903 Preservative Formulating Guidelines & Safety

Sharing is caring!

Euxyl K 903 is a mild, liquid preservative that protects against a broad spectrum of bacteria, yeast, and molds. It can be used in a variety of leave in or wash off products including those used in areas that have sensitive skin.

Euxyl K 903 Preservative

Euxyl K 903 Quick Facts

Euxyl K 903 Broad Spectrum Preservative is also Known As:
Optiphen BD and Sharomix 706 (water soluble version)
Euxyl K 903 INCI:
Benzyl Alcohol (and) Benzoic Acid (and) Dehydroacetic Acid (and) Tocopherol
COSMOS and ECOCERT Standards:
Euxyl K 903 meets COSMOS and ECOCERT standards
Euxyl K 903 Ingredients:
Ingredients of Euxyl K 903 are benzyl alcohol, benzoic acid, and dehydroacetic acid
Euxyl K 903 Activity:
Euxyl K 903 is biostatic, meaning that it naturally reduces and controls the growth of organisms; the organic acids in it are also biocidal, which kill unwanted bacterial cells. This makes Euxyl K 903 an excellent broad-spectrum preservative that is effective against bacteria, yeast, and molds.
Is Euxyl K 903 Water Soluble?
Euxyl K 903 has limited water solubility. It is considered oil soluble and generally requires a solubiliser if used in aqueous solutions.
PH Compatibility:
Euxyl K 903 is compatible with pH’s 3 through 6 although its optimum pH is below 5.5.
Recommended Usage Levels:
Euxyl K 903 has a recommended usage level of 0.4-1.2%.

What is Euxyl K 903?

Euxyl K 903 Preservative

Euxyl K 903 is a liquid preservative that offers a broad-spectrum range of protection from gram-positive and gram-negative bacteria as well as yeasts and molds.

It is a generally safe preservative that is relatively gentle and can be used in products intended for use around the eyes or even in products made for babies.

Euxyl K 903 is the perfect preservative where gentleness to the skin is needed.

Is Euxyl K 903 Safe?

Euxyl K 903 is generally regarded as safe. It is gentle on skin and compatible with a wide range of products.

This preservative does contain benzyl alcohol, which is classified as a fragrance allergen. This could be a problem for those with the most sensitive skin.

It is always recommended to perform a patch test on skin when using new products. Be sure only to use Euxyl K 903 in proper amounts.

Is Euxyl K 903 Natural?

Euxyl K 903 is a natural preservative that is made up of organic acids. It is safer than parabens and can be used in natural products.

Euxyl K 903 Uses:

Euxyl K 903 Preservative

Euxyl K 903 can be used in many products such as:

And much more!

How to Use Euxyl K 903 Preservative in Formulations

Euxyl K 903 is oil soluble and is best added to formulations during the cooling phase.

It is most compatible with pH’s 3-6. Efficacy is increased in lower pH formulations between 5.0 and 5.5.

Be sure to test your product pH before adding preservatives to ensure that they work most effectively.

Euxyl K 903 Warnings

Please follow all safety guidelines when working with Euxyl K 903; it is classified as a mild preservative; however, it should be handled with care.

The raw material form can cause skin and eye irritation; be sure to wear appropriate protection when working with this preservative, including eye protection.

Where to Buy Euxyl K 903 Preservative

Other Natural Preservative Options

If Euxyl K 903 doesn't work for your formulation, check out these other natural preservative options.

Share and Pin This Post for Later!

I hope you've enjoyed learning all about Euxyl K 903 for your skincare formulations. Be sure to share and pin this post for later!

Euxyl K 903 Preservative

Kathy A Pelot

Monday 24th of January 2022

Great article. Please can you cut down the ads. They take up a quarter of the screen and can be frustrating to read the articles when you have constant pop ups.

gay dating professional bodybuilders

Saturday 15th of January 2022

athletic gay dating sites

free gay boys chat

Friday 14th of January 2022

free live gay web can chat rooms

chat with senior gay'

Friday 14th of January 2022

gay chat chartestone

women veteran dating sites gay

Friday 14th of January 2022

best free dating gay apps

Top 10 Skincare Oils to Boost Collagen & Fade Age Spots

Want to fade Age Spots and Boost Collagen in your skin?


Discover the Top 10 Skincare Oils you should be including in your anti-aging skincare formulas to boost collagen & fade age spots!


Enter your name & email below to download your free guide!

You have Successfully Subscribed!