# R-(METHIONYL TRIPEPTIDE-46 HEXAPEPTIDE-40 TETRAPEPTIDE-66 SYNECHOCOCCUS POLYPEPTIDE-1)

URL: https://app.greenveil.ai/ingredients/ingredient_inci_r_methionyl_tripeptide_46_hexapeptide_40_tetrapeptide_66_synechococcus_polypeptide_1
Categories: beauty
Functions: UV filter, Antimicrobial, Antioxidant, Humectant, Skin conditioning, Astringent
Identifier: R-(METHIONYL TRIPEPTIDE-46 HEXAPEPTIDE-40 TETRAPEPTIDE-66 SYNECHOCOCCUS POLYPEPTIDE-1)

> R-(METHIONYL TRIPEPTIDE-46 HEXAPEPTIDE-40 TETRAPEPTIDE-66 SYNECHOCOCCUS POLYPEPTIDE-1): Used in cosmetics as a UV filter, an antimicrobial and an antioxidant. 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 — r-(Methionyl Tripeptide-46 Hexapeptide-40 Tetrapeptide-66 Synechococcus Polypeptide-1) is a single chain recombinant peptide, produced by fermentation in E. coli. The starting gene is synthesized by the fusion of the genes from Tripeptide-46, Hexapeptide-40, Tetrapeptide-66 and r-Synechococcus Polypeptide-1 with the initiation codon for methionine. The fusion peptide contains 178 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/95712

_Assessed by Greenveil._