What changes
Trimethylbenzoyl diphenylphosphine oxide (TPO) was allowed up to 5% for professional use in artificial nail systems. After its classification as toxic for reproduction (category 1B) by Delegated Regulation (EU) 2024/197, it was moved to Annex II and is now banned. The act also prohibits other newly classified CMR substances, including N,N-dimethyl-p-toluidine, an accelerator used in some nail products. Salons and consumers should no longer use gel polishes containing TPO; compliant TPO-free gels are widely available.
Key dates
| Published | 13 May 2025 |
|---|---|
| Entry into force | 2 June 2025 |
| Cannot be placed on the market from | 1 September 2025 |
| Cannot be made available (sold) from | 1 September 2025 |
Verified against the Official Journal (OJ L, 2025/877, 13.5.2025; entry into force on the 20th day after publication, application from 1 September 2025). Both date fields give the date from which non-compliant products may no longer be placed on or made available on the market; there was no sell-off period.
Affected ingredients
Products in our database containing these ingredients
1 products in INCIMondo contain at least one of these ingredients.
This is a consumer-oriented summary, not legal advice. Only the text published in the Official Journal of the EU is legally binding.

