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Is Soluble Fibroin vegetarian?

Soluble Fibroin

Soluble Fibroin is a water-soluble, non-hydrolyzed native protein derived from fibroin, the main structural protein of silk, obtained from the cocoons of the silkworm Bombyx mori, which requires killing the pupae during processing.

INCI name Soluble Fibroin
CosIng ID 93690
Last reviewed 4 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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