Is Silkworm Frass vegetarian?
Silkworm Frass
Silkworm Frass is the excrement (frass) collected from the silkworm, Bombyx mori, sometimes used in cosmetic or agricultural applications. It is an insect-derived byproduct but does not require killing the insect to obtain it.
| INCI name | Silkworm Frass |
|---|---|
| CosIng ID | 90329 |
| Last reviewed | 4 July 2026 |
An ingredient is considered vegetarian if it avoids components derived from killing an animal.
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