# MICROBIAL CELLULOSE/SR-SPIDER POLYPEPTIDE-3 HEXAPEPTIDE-40

URL: https://app.greenveil.ai/ingredients/ingredient_inci_microbial_cellulose_sr_spider_polypeptide_3_hexapeptide_40
Categories: beauty
Functions: Humectant, Emollient, Occlusive
Identifier: MICROBIAL CELLULOSE/SR-SPIDER POLYPEPTIDE-3 HEXAPEPTIDE-40

> MICROBIAL CELLULOSE/SR-SPIDER POLYPEPTIDE-3 HEXAPEPTIDE-40: Used in cosmetics as a humectant, an emollient and an occlusive. 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 — Microbial Cellulose/sr-Spider Polypeptide-3 Hexapeptide-40 is a single chain recombinant protein produced by fermentation in Acetobacter xylinum entrapped within the microbial cellulose matrix synthesized by the same bacteria. The starting gene is synthesized by the fusion of the gene from sr-Spider Polypeptide-3 and {25967; Hexapeptide-40}. The fusion peptide contains 110 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/98677

_Assessed by Greenveil._