Hydrolyzed Porphyra Yezoensis
molecular structure · PubChem
AKA: Hydrolyzed Red Algae, Porphyra Yezoensis Extract
Synthetic
Humectant
Skin Conditioner
Hair Care
Marine
Not Clean
Hydrolyzed Porphyra Yezoensis is the hydrolysate of the alga, Porphyra yezoensis derived by acid, enzyme or other method of hydrolysis
CAS #
-
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.
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
Nori seaweed (Porphyra) has been consumed as food in Asian cuisines for centuries but was not traditionally applied topically to skin. The hydrolyzed extract was developed in the modern era as a cosmetic conditioning ingredient.
Skin Types
●all-skin-types
Best For
General
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