Fucus Vesiculosus

Fucus Vesiculosus 1
Fucus Vesiculosus 2
AKA: Bladder wrack, Fucus Vesiculosus Powder
Synthetic
Skin Conditioner
Marine
Not Clean
Fucus Vesiculosus is the alga, Fucus vesiculosus, Fucaceae.
CAS #
84696-13-9
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.
Locks in moisture
Traditional Use
Bladderwrack seaweed has been used in traditional European and Irish folk medicine for centuries as a treatment for iodine deficiency, thyroid disorders, and skin conditions. Historical records show it was applied topically for eczema and psoriasis, and consumed internally for joint health.
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
medical-approval
all-shades-safe
Moderate Irritant
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR