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Alteromonas Ferment Extract

What Alteromonas Ferment Extract is & what it does

Alteromonas Ferment Extract is a biotech ingredient produced by fermenting the marine bacterium Alteromonas, which secretes an exopolysaccharide that is then collected. In cosmetic and sunscreen formulas it is used mainly as a skin-conditioning and film-forming agent that helps support hydration and a smooth surface feel. Marine ferment extracts of this type are often included for their soothing, moisture-binding properties.

What does Alteromonas Ferment Extract do in skincare?

Alteromonas Ferment Extract is used mainly as a skin-conditioning and film-forming agent. It is a sugar-rich material made by marine bacteria, and it helps support hydration and a smooth surface feel. Formulators often include it for its soothing, moisture-binding properties.

Is Alteromonas Ferment Extract safe?

Alteromonas Ferment Extract is a commonly used cosmetic ingredient considered suitable for topical use in standard formula amounts. It is a biotech-derived exopolysaccharide rather than a harsh chemical. As with any ingredient, anyone with sensitive skin can patch test a new product first.

Is Alteromonas Ferment Extract vegan?

Alteromonas Ferment Extract is produced by fermenting marine bacteria, so the ingredient itself does not come from animals. Whether a finished product is fully vegan depends on all of its other ingredients and the brand's sourcing. Checking the brand's vegan labeling is the most reliable way to confirm.

Sunscreens with Alteromonas Ferment Extract

We rate 26 sunscreens that contain it, showing the top 10 by overall score:

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