# SILKWORM OLIGOPEPTIDE-4

URL: https://app.greenveil.ai/ingredients/ingredient_inci_silkworm_oligopeptide_4
Categories: beauty
Functions: Humectant, Skin conditioning, Skin protecting, Surfactant, Emulsion stabilising, Film forming
Identifier: SILKWORM OLIGOPEPTIDE-4

> SILKWORM OLIGOPEPTIDE-4: Used in cosmetics as a humectant, a skin-conditioning agent and a skin protectant. Canonical ingredient record built from 1 public-source records. Compiled from 1 published data source.

## Safety assessment

- Chemical concern: not yet assessed
- Is it a concern? We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
- Rationale: Canonical ingredient record built from 1 public-source records.

## Regulatory status

- EU: Active — Silkworm Oligopeptide-4 is a single chain peptide containing 12 amino acids consisting of alanine, glycine, tyrosine and valine, obtained from the silkworm. The starting gene codes for Fibroin Heavy Chain, found in the silkworm. The parent protein contains a maximum of 5263 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.

## Expert safety opinions

- SCCS (EU Scientific Committee on Consumer Safety): no opinion on file.
- CIR (Cosmetic Ingredient Review (US expert panel)): no opinion on file.

## Data sources

- CosIng (updated 2026-09-23): https://ec.europa.eu/growth/tools-databases/cosing/details/105008

_Assessed by Greenveil._