Dictyota coriacea extract
AKA “Brown seaweed extract, Dictyota extract
Extract
Ingredient Facts
Dictyota coriacea extract
AKA: Brown seaweed extract, Dictyota extract
Extract · Antioxidant · EWG: 4
Plant-Derived
Antioxidant
Soothing
Skin Conditioner
Extract
Clean
Dictyota Coriacea Extract is the extract of the alga, Dictyota coriacea Science: Origin: Botanic/Natural | Process: Solvent Extraction | Functions: Oxidising Safety Ratings: CIR: Safe as used
Plant Part
Whole Plant
CAS #
-
Form
Liquid
See origin →
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Soothing
Calms redness, irritation, and inflammation. Your skin's chill pill — great for sensitive, reactive, or post-procedure skin.
Oxidizing Agent
Anti-Aging Benefits
Reduces Inflammation
Chemical oxidation
Traditional Use
Extract from a brown macroalga traditionally used in Asian coastal communities for skin health. Contains compounds used in modern skincare for antioxidant and skin-conditioning properties.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Moderate Irritant
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR