What it is
Hydrolyzed Extensin is a partially broken-down form of extensin, a hydroxyproline-rich glycoprotein found in plant cell walls. Hydrolysis reduces it to smaller, more soluble fragments that can form a light conditioning film and help hold moisture at the skin surface. In serums and sunscreens it is used to add a smooth, hydrated, conditioned feel.
Safety & warnings
Hydrolyzed plant proteins of this type are generally well tolerated and used at low levels for conditioning. As with any protein-derived ingredient, sensitization is theoretically possible but uncommon at cosmetic use levels. It is water-soluble and not comedogenic.
Origin & sourcing
Plant-derived; produced by hydrolysis of extensin, a glycoprotein from plant cell walls.
Questions everyone asks
What is extensin?
Extensin is a hydroxyproline-rich glycoprotein from plant cell walls; the hydrolyzed form is broken into smaller, soluble fragments for skincare use.
What does hydrolyzed extensin do for skin?
It helps form a light conditioning film and hold moisture, leaving skin feeling smooth and hydrated.