Cystoseira caespitosa extract
AKA “Brown seaweed extract, Cystoseira caespitosa extract
Extract
Ingredient Facts
Cystoseira caespitosa extract
AKA: Brown seaweed extract
Extract · Skin Protecting · EWG: 4
Plant-Derived
Barrier Support
Extract
Not Clean
Cystoseira Caespitosa Extract is the extract of the alga, Cystoseira caespitosa, Sargassaceae.
Family
Sargassaceae
Plant Part
Whole Plant
Form
Liquid
See origin →
Functions
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
Nourishes & Protects
Traditional Use
A brown seaweed species used in traditional Mediterranean and Atlantic coastal skincare preparations. Employed historically for its nutrient density and potential marine-derived moisturizing benefits.
Skin Types
all-skin-types
Best For
Antioxidant Protection
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Moderate Irritant
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR