Humectant

Hydrolyzed Oyster Glycoprotein

INCI: HYDROLYZED OYSTER GLYCOPROTEIN

Reviewed by Kate · Last updated 18 Aug 2026

What Is Hydrolyzed Oyster Glycoprotein?

Hydrolyzed Oyster Glycoprotein is the hydrolysate of oyster (Pinctada martensii) glycoproteins derived by acid, enzyme or other method of hydrolysis.

Its declared cosmetic functions are humectant and skin conditioning.

Source: European Commission CosIng inventory.

From the Clinic

Not sure what your skin actually needs?

Two minutes, a few questions, and we’ll point you at what matters — no guesswork.

Take the skin quiz

Learn More About Skincare Ingredients

Explore our comprehensive ingredient glossary to understand what's in your products.

Browse All Ingredients

Authorised Stockist

Official UK retailer

Tracked Delivery

Free UK shipping over £50

5 Star Rating

Trusted by thousands

Expert Advice

Free consultations