Data sources and methodology
CosIng Checker currently indexes 2377 records derived from publicly available European Commission cosmetic ingredient materials covering Annex II to Annex VI.
Source and verification note
CosIng Checker is an independent reference website built from publicly available European Commission cosmetic ingredient materials, including Annex II–VI datasets.
Use these pages for research, discovery and comparison, but verify critical regulatory decisions against the official source text and current law.
Annex source files
Each annex below shows the local source file, the source update date carried by that file, the local import timestamp and the current number of indexed records.
| Annex | Title | Source file | Source last update | Imported at | Records |
|---|---|---|---|---|---|
| Annex II | LIST OF SUBSTANCES PROHIBITED IN COSMETIC PRODUCTS | data/COSING_Annex_II_v2.txt |
02/03/2026 | 2026-03-19 23:11 | 1757 |
| Annex III | LIST OF SUBSTANCES WHICH COSMETIC PRODUCTS MUST NOT CONTAIN EXCEPT SUBJECT TO THE RESTRICTIONS LAID DOWN | data/COSING_Annex_III_v2.txt |
02/03/2026 | 2026-03-19 23:11 | 375 |
| Annex IV | LIST OF COLORANTS ALLOWED IN COSMETIC PRODUCTS | data/COSING_Annex_IV_v2.txt |
02/03/2026 | 2026-03-19 23:11 | 154 |
| Annex V | LIST OF PRESERVATIVES ALLOWED IN COSMETIC PRODUCTS | data/COSING_Annex_V_v2.txt |
02/03/2026 | 2026-03-19 23:11 | 57 |
| Annex VI | LIST OF UV FILTERS ALLOWED IN COSMETIC PRODUCTS | data/COSING_Annex_VI_v2.txt |
02/03/2026 | 2026-03-19 23:11 | 34 |
Fields available in the dataset
The parser and search layer expose the main ingredient, identifier and regulatory fields directly in the interface.
- Chemical name
- INCI glossary name
- Colour index or glossary
- CAS number
- EC number
- Product type
- Warnings
- Maximum concentration
- Other restrictions
- SCCS opinions
- CMR
- Update date
Normalization notes
CosIng Checker improves readability and internal linking, but not every official field arrives in perfectly structured form.
- Multi-part product type notes are split into cleaner browsing groups.
- CAS and EC values can be linked across grouped pages and record detail pages.
- Search pages use normalized text so names, identifiers and related notes are easier to find.
- Some regulatory fields, such as warnings or concentration notes, remain textual because the official source is not always fully structured.
How to use this information
Use these source and methodology notes to understand where the data comes from, what has been normalized, and when to cross-check the official materials.