Pseudoalteromonas Ferment Extract is produced by fermenting marine Pseudoalteromonas bacteria, yielding peptides and exopolysaccharides. Moisturizers and serums use it for hydration, a smoother-feel film, and barrier-care positioning in modern biotechnology formulas.
This marine ferment hydrates skin and supports a smoother barrier.
Category
Hydration, Barrier Support, Skin Conditioning
Type
Film Former
Ingredient Ratings
Overall Rating
Fair
Comedogenic Risk
None
Skin Benefits
Leaves skin feeling smoother and more supple while supporting moisture retention for a healthier-looking barrier, though evidence is fair and benefits may be modest for some users.
Uses In Skincare & Cosmetics
Commonly featured in ampoules, gel creams, and overnight masks to create a soft, flexible finish on the skin.
Comedogenic Rating
This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.
Safety
Considered low risk at typical use levels and suitable for daily wear. Those sensitive to ferments or with a compromised barrier should introduce it gradually and watch for irritation; no known regulatory restrictions apply at standard concentrations.
Is Pseudoalteromonas Ferment Extract a Good Ingredient?
Fair, because most of the hydration and barrier data come from supplier-funded studies rather than independent research, so the claims aren't fully confirmed. It's generally low-irritant, though bioferments can still provoke sensitivity in reactive skin.