# ACID YELLOW 23

URL: https://app.greenveil.ai/ingredients/ingredient_inci_acid_yellow_23
Categories: beauty
Functions: Colorant, Hair dyeing
Identifier: ACID YELLOW 23

> ACID YELLOW 23: Used in cosmetics as a colourant and a hair dye. Acid Yellow 23 is classed chemically as a pyrazole colour. Canonical ingredient record built from 2 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 2 public-source records.

## Regulatory status

- EU: Active — Acid Yellow 23 is classed chemically as a pyrazole colour. It conforms to the formula: Restriction: III/189
IV/44
- EU: Active — CI 19140 is classed chemically as a pyrazole colour. It conforms to the formula: Restriction: IV/44 (CI 19140)
III/189 (Acid Yellow 23; Acid Yellow 23 Aluminum lake)

## 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/31637

_Assessed by Greenveil._