Laminaria Japonica Extract
Kombu brown seaweed extract – a source of alginates, fucoidan and mannitol. Hydrating and antioxidant action. Pregnancy-safe.
Evidence by route
Topical application
Humectant and antioxidant based on alginates and fucoidan.
- Fitton JH. Therapies from fucoidan. Mar Drugs 2011. PMID 22072995
How to read tiers A–F
- CWeak evidence. In vitro data, open-label studies, or expert consensus
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Laminaria japonica extract is a water or glycol extract of kombu brown seaweed. INCI: Laminaria Japonica Extract. Contains alginates, fucoidan, mannitol and minerals. In cosmetics it works as a humectant and antioxidant. Alginates form a hydrating film and fucoidan has anti-inflammatory properties in vitro. Use levels run from 0.5 to 5%. Pregnancy safety. Skin absorption into the systemic circulation is minimal at cosmetic concentrations. Skin profile. Low irritation and allergen potential. Non-comedogenic. Suitable for all skin types. Moderate evidence.
Frequently asked questions
Is Laminaria Japonica Extract safe during pregnancy?
Laminaria Japonica Extract is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Laminaria Japonica Extract for?
Laminaria Japonica Extract suits: normal, dry, combination, oily, sensitive.
What is Laminaria Japonica Extract and what does it do in cosmetics?
Kombu brown seaweed extract – a source of alginates, fucoidan and mannitol.
Is Laminaria Japonica Extract comedogenic?
On the Fulton scale 0/5 – non-comedogenic. For acne-prone skin, a rating of 3 or higher suggests choosing an alternative.
What's the INCI name for Laminaria Japonica Extract?
The INCI name is Laminaria Japonica Extract. It may also appear as: Kombu Extract.
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