Macrocystis pyrifera (Kelp) blade/pneumatocyst/stipe juice extract

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AKA: Giant Kelp, Kelp Blade/Pneumatocyst/Stipe Juice Extract
Plant-Derived
Skin Conditioner
Marine
Extract
Not Clean
Macrocystis Pyrifera (Kelp) Blade/Pneumatocyst/Stipe Juice Extract is a cosmetic ingredient. Assessed as safe by the CIR.
Plant Part
Whole Plant
CAS #
347174-92-9
Form
Liquid
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.
Pneumatocyst And Stipe Of The Alga
Macrocystis Pyrifera
Antioxidant Protection
Reduces Inflammation
Locks In Moisture
Traditional Use
A modern extraction of specific kelp plant parts developed for cosmetic use to concentrate bioactive compounds including minerals, amino acids, and polysaccharides for skin conditioning and anti-inflammatory benefits.
EWG
4
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
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