undefined 1
undefined 2
undefined 3
undefined 4
undefined 5
undefined 6
undefined 7
undefined 8
undefined 9
undefined 10
undefined 11
undefined 12
undefined 13
undefined 14
Undaria pinnatifida extract
AKA “Alga”
Extract
Ingredient Facts
Undaria pinnatifida extract
AKA: Alga
Extract · Skin Protecting · EWG: 3
Plant-Derived
Skin Conditioner
Barrier Support
Marine
Extract
Not Clean
Undaria Pinnatifida Extract is an extract of the Alga, Undaria pinnatifida, Alariaceae
Family
Alariaceae
Plant Part
Whole Plant
Form
Liquid
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
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
Wakame seaweed has been used in Japanese and Korean cuisine and traditional medicine for centuries, valued for its mineral content and nourishing properties. Its use in modern skincare is a recent adaptation based on traditional food use and contemporary marine cosmetics trends.
Skin Types
●all-skin-types
Best For
Anti-Aging
Pregnancy & Breastfeeding Safe
Yes
EWG
3
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Moderate Irritant
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
UV Photoprotection, Cytotoxicity and Immunology Capacity of Red Algae Extracts.
Álvarez-Gómez F, Korbee N, Casas-Arrojo V, Abdala-Díaz RT, Figueroa FL
Molecules (Basel, Switzerland), 2019
→
Valorization of the Red Algae Gelidium sesquipedale by Extracting a Broad Spectrum of Minor Compounds Using Green Approaches.
Castejón N, Parailloux M, Izdebska A, Lobinski R, Fernandes SCM
Marine drugs, 2021
→
Anti-herpetic Activity of Macrocystis pyrifera and Durvillaea antarctica Algae Extracts Against HSV-1 and HSV-2.
Castillo E, Duarte LF, Corrales N, Álvarez DM, Farías MA et al.
Frontiers in microbiology, 2020
→
Final Report: Safety Assessment of Brown Algae-Derived Ingredients as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report: Safety Assessment of Red Algae-Derived Ingredients as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Algae Exopolysaccharides
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Algae Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dunaliella Salina (Algae) Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Nannochloropsis oculata (algae) extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Porphyra umbilicalis (red algae) extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Spirulina Platensis [Algae*] Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Undaria Pinnatifida Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Algae Peptides
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Chlorella Vulgaris Dermochlorella Algae Extract
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Porphyra umbilicalis (red algae) extract
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Undaria Pinnatifida Extract
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Optimized and standardized isolation and structural characterization of anti-inflammatory sulfated polysaccharides from the red alga Delesseria sangui
Grünewald N, Alban S
Biomacromolecules, 2009
→
In vivo UVB-photoprotective activity of extracts from commercial marine macroalgae.
Guinea M, Franco V, Araujo-Bazán L, Rodríguez-Martín I, González S
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 2012
→
RALGA (Diacneal), a retinaldehyde and glycolic acid assoc...
A D Katsambas
Dermatology (Basel, Switzerland), 2005
→
The Anti-melanogenesis Activities of Some Selected Red Macroalgae from Northern Coasts of the Persian Gulf.
Namjoyan F, Farasat M, Alishahi M, Jahangiri A, Mousavi H
Iranian journal of pharmaceutical research : IJPR, 2019
→
Breeding in the Economically Important Brown Alga Undaria pinnatifida: A Concise Review and Future Prospects.
Shan T, Pang S
Frontiers in genetics, 2021
→
Screening of Bioactive Properties in Brown Algae from the Northwest Iberian Peninsula.
Silva A, Rodrigues C, Garcia-Oliveira P, Lourenço-Lopes C, Silva SA et al.
Foods (Basel, Switzerland), 2021
→
Screening of Bioactive Properties in Brown Algae from the Northwest Iberian Peninsula.
Silva A, Rodrigues C, Garcia-Oliveira P, Lourenço-Lopes C, Silva SA et al.
Foods (Basel, Switzerland), 2021
→
Antioxidant screening and phenolic content of ethanol extracts of selected Baja California Peninsula macroalgae.
Tenorio-Rodriguez PA, Murillo-Álvarez JI, Campa-Cordova ÁI, Angulo C
Journal of food science and technology, 2017
→
Cyanobacteria and Red Macroalgae as Potential Sources of Antioxidants and UV Radiation-Absorbing Compounds for Cosmeceutical Applications.
Vega J, Bonomi-Barufi J, Gómez-Pinchetti JL, Figueroa FL
Marine drugs, 2020
→
Cyanobacteria and Red Macroalgae as Potential Sources of Antioxidants and UV Radiation-Absorbing Compounds for Cosmeceutical Applications.
Vega J, Bonomi-Barufi J, Gómez-Pinchetti JL, Figueroa FL
Marine drugs, 2020
→
Comprehensive Extraction and Biological Activities of Mycosporine-like Amino Acids and Glyceroglycolipids Extracts from Two Macroalgae Ecklonia kurome
Wei X, Hu X, Li T, Li Y, Yu Y et al.
Foods (Basel, Switzerland), 2025
→
Verified Jun 2026
Data: CosIng · EWG · CIR