Porphyridium Cruentum Extract is a cosmetic ingredient derived from red microalgae rich in sulfated polysaccharides and pigments. It's used in skincare to improve texture, support moisture-friendly formulas, and fit protection-focused routines.
Red microalgae extract that hydrates skin and fights free radicals.
Category
Hydration, Antioxidant, Skin Conditioning, Soothing, Barrier Support
Type
Botanical Extract
Ratings
Overall Rating
Good
Comedogenic Risk
None
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
Is Porphyridium Cruentum Extract a Good Ingredient?
Rated Good because its sulfated polysaccharides and pigments show antioxidant and moisture-retaining behavior in lab and formulation studies, with generally low irritation potential. Evidence in humans is modest but consistent enough to support skin-conditioning and hydration roles.
What it does
Skin Benefits
Boosts surface hydration and helps defend against free-radical stress for a smoother, more supple feel. Can reduce the look of dullness linked to environmental exposure.
Where you'll find it
Uses in Skincare & Cosmetics
Included in hydrating serums, day moisturizers, and sunscreen gels to deliver a dewy finish and lasting comfort.
Before you use it
Safety
Typically well tolerated with a low likelihood of irritation; patch testing is sensible for very sensitive skin. Those with algae or marine ingredient sensitivities should use caution. No widely recognized regulatory restrictions for topical use.