Nereocystis luetkeana extract
AKA: Bull Kelp Extract, Oarweed Extract
Plant-Derived
Skin Conditioner
Hair Care
Marine
Extract
Not Clean
Nereocystis Luetkeana Extract is the extract of the alga, Nereocystis luetkeana, Laminariaceae.
Plant Part
Thallus
Form
Liquid
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
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
Bull kelp, a Pacific Northwest seaweed, has been used traditionally by Indigenous peoples of the Pacific coast for nutritional and medicinal purposes. Modern cosmetic use derives from the ingredient's natural mineral and polysaccharide content, which offers hydration and skin conditioning properties.
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR