Laminaria diabolica extract
AKA “Diabolica Seaweed Extract, Diabolica Kelp Extract
Extract
Ingredient Facts
Laminaria diabolica extract
AKA: Diabolica Seaweed Extract, Diabolica Kelp Extract
Extract · Humectant · EWG: 4
Plant-Derived
Humectant
Skin Conditioner
Marine
Extract
Clean
Laminaria Diabolica Extract is the extract of the alga, Laminaria diabolica, Laminariaceae. Science: Origin: Botanic/Natural | Process: Solvent Extraction | Functions: Humectant, Skin Conditioning Safety Ratings: CIR: Safe as used
Family
Laminariaceae (Brown Algae)
Plant Part
Thallus
Form
Liquid
See origin →
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
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
Laminaria Diabolica is a species of kelp used in traditional Pacific coastal skincare practices. Seaweeds have long been recognized in Asian traditional medicine for their mineral-rich and skin-nourishing properties.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Moderate Irritant
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR