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 · Skin Conditioning · EWG: 1
Plant-Derived Synthetic
Skin Conditioner
Marine
Extract
Clean
Gigartina Stellata Extract is a cosmetic ingredient. Rated low hazard by EWG.
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.
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
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Moderate Irritant
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR