Gigartina stellata extract
AKA “Gigartina Stellata Extract, sometimes referred to as carrageenan (though this term can be broader)”
Extract
Ingredient Facts
Gigartina stellata extract
AKA: Sometimes referred to as carrageenan (though this term can be broader)
Extract · Antioxidant · EWG: 5
Plant-Derived Synthetic
Antioxidant
Soothing
Skin Conditioner
Marine
Extract
Clean
A protective red algae extract from the North Atlantic that helps shield skin from environmental stressors and supports a healthy complexion.
CAS #
223751-69-7
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Protectant
Soothing
Calms redness, irritation, and inflammation. Your skin's chill pill — great for sensitive, reactive, or post-procedure skin.
Skin Protecting
Shields skin from damage
Traditional Use
A red seaweed traditionally harvested and used in East Asian and Celtic coastal communities for skin health and as a natural thickening agent in food and remedies.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR