Is 4-MBC banned in cosmetics? In the EU, yes. In Türkiye, still allowed.

4-MBC (4-methylbenzylidene camphor) is a UV filter used in sunscreens. The EU has prohibited it in every cosmetic product: no new products since 1 May 2025, and none on sale from 1 May 2026. Türkiye’s annex still lists it as a UV filter, up to 4%.

EU

Prohibited

Annex II · entry 1730

  • Rule

    Prohibited in cosmetic products, every use

  • Regulation

    (EU) 2024/996

  • New products

    May not be placed on the market from 1 May 2025

  • Products on sale

    May not be made available from 1 May 2026

Source Regulation (EU) 2024/996 on EUR-Lex ↗

Checked 2 Nov 2026

Türkiye’s annex still carries the EU rule from before Regulation (EU) 2024/996. A sunscreen made in Türkiye for the EU market must not contain 4-MBC.

What it is. The EU annex entry.

INCI name
4-Methylbenzylidene Camphor
Chemical name
3-(4'-methylbenzylidene)-camphor; [
CAS
36861-47-9, 38102-62-4
EC
253-242-6
EU entry
Annex II · 1730 · (EU) 2024/996
Entry updated
04/04/2024

The EU entry is from the Commission’s CosIng file of 13 Oct 2026; Türkiye’s from the current annex text on mevzuat.gov.tr, read 2 Nov 2026.

Why. The reason behind the rule.

The SCCS could not conclude that 4-MBC is safe: the data were not enough to rule out genotoxicity, and there was enough evidence that it may act as an endocrine disruptor on the thyroid and oestrogen systems. No safe concentration could be set, so the EU prohibited it for every use in cosmetics (SCCS opinion of 29 April 2022).

Questions about this ingredient.

Can a sunscreen containing 4-MBC still be sold in the EU?

No. New products could not be placed on the market from 1 May 2025, and from 1 May 2026 no product containing it may be made available.

Is 4-MBC allowed in Türkiye?

Türkiye’s annex lists it as a UV filter up to 4% (Ek VI, entry 18). That is the EU rule before Regulation (EU) 2024/996. A product for the EU must not contain it.

Is it in your formula?

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