# 1,3,4,6-TETRAMETHYL-2-PYRIMIDONE SULFATE

URL: https://app.greenveil.ai/ingredients/ingredient_inci_1_3_4_6_tetramethyl_2_pyrimidone_sulfate
Categories: beauty
Functions: Hair dyeing
Identifier: 1,3,4,6-TETRAMETHYL-2-PYRIMIDONE SULFATE

> 1,3,4,6-TETRAMETHYL-2-PYRIMIDONE SULFATE: Used in cosmetics as a hair dye. 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 — 1,3,4,6-Tetramethyl-2-Pyrimidone Sulfate is the hair color that conforms to the formula:

## 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/98018

_Assessed by Greenveil._