The ingredient, explained

Silk

A published safety assessment explicitly covers SILK.

Bulking

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Ingredient guide

What it is and what it does

Serica -EU-

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Bulking: Changes a product's bulk density.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Safety assessment

The panel accepted the reported uses and concentrations of eight listed ingredients including Silk; data were insufficient for MEA-Hydrolyzed Silk and Silkworm Cocoon Extract.

What this does not tell us

Published safety assessment, not an efficacy trial. Its conclusion is limited to the reported cosmetic uses and concentrations, and relies partly on group read-across where individual data are missing. It does not establish current regulatory status or guarantee tolerance for every formulation. The two insufficient-data derivatives are not included in the accepted conclusion. Clinical sericin combinations and surgical silk sutures do not establish intact-silk cosmetic efficacy.

Sources for this summary. PubMed 33203267 ↗

Research review checked Oct 1, 2026

Review supplied candidate titles and available abstracts selectively for exact identity; targeted primary PubMed/publisher searches. This is not an exhaustive systematic review.

Ingredient research is not proof that a product containing this ingredient works.