Kappaphycus alvarezii extract



AKA: Alga
Plant-Derived
Skin Conditioner
Extract
Clean
OriginNative to Southeast Asia. Kappaphycus alvarezii is a red alga belonging to the Solieriaceae family, native to Southeast Asia. The extract is obtained through solvent extraction of the algal thallus.
Kappaphycus Alvarezii Extract is an extract of the Alga, Kappaphycus alvarezii, Soleriaceae
Family
Solieriaceae
Plant Part
Thallus
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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
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.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 817)
Eye Irritant in Testing
1 study / 1 irritating / reactions slight (CIR 817)
Concentration Guide
Leave-on0.019–0.19%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2021
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR
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