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
Ratings
Overall Rating
Fair
Comedogenic Risk
None
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
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.
What it does
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.
Where you'll find it
Uses in Skincare & Cosmetics
Commonly featured in ampoules, gel creams, and overnight masks to create a soft, flexible finish on the skin.
Before you use it
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.