Tap what applies — every card instantly flags it for you. Stays on your device, syncs if you're signed in.
Ingredient Facts
Fibroin
AKA: Silk fibroin, Fibroin protein
Ingredient · Bulking · EWG: 1
Synthetic
Clean
Fibroins. Protein filaments produced by the silkworm, Bombyx mori
CAS #
9007-76-5
Form
Liquid
See origin →
Functions
Bulking
Anti-Inflammatory
Moisturizing
Boosts Collagen
Adds volume
Traditional Use
Fibroin is a protein extracted from silk cocoons, used in cosmetics since the mid-20th century. Silk has been valued in Asian skincare for centuries, but the isolated protein ingredient is a modern scientific extraction designed to provide skin-conditioning and film-forming properties.