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KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.

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2-Pentylidenecyclohexanone, when used as a fragrance ingredient

Korean: 2-펜틸리덴사이클로헥사논 (착향제로 사용될 때) · CAS 25677-40-1 ·

KR South Korea (MFDS)

No specific rule on file.

EU European Union (CosIng)

Prohibited Annex II/448

Source: EU CosIng — Annex II · checked Oct 17, 2026

US United States (FDA)

No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.

Other markets

How 2-Pentylidenecyclohexanone, when used as a fragrance ingredient is treated in 2 more markets, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.

Market	Status	Conditions
BR Brazil	Prohibited only in certain forms or uses	MFDS summary (Korean): when used as a fragrance ingredient^착향 성분으로 사용될경우에 한함
AR Argentina	Prohibited only in certain forms or uses	MFDS summary (Korean): when used as a fragrance ingredient^착향 성분으로 사용될경우에 한함

Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026

Also listed as

2-Pentylidenecyclohexanone, when used as a fragrance ingredient 2-펜틸리덴사이클로헥사논 (착향제로 사용될 때)

Information only, not medical advice. Rules change — always check the linked official source. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist.

Frequently asked questions

Is 2-Pentylidenecyclohexanone, when used as a fragrance ingredient banned in the European Union?

In the EU's CosIng records it is listed as “Prohibited” (EU CosIng — Annex II).

Is 2-Pentylidenecyclohexanone, when used as a fragrance ingredient banned in South Korea?

We found no specific rule for it in Korea's MFDS records. That is not an approval or a safety statement.

Is 2-Pentylidenecyclohexanone, when used as a fragrance ingredient allowed in cosmetics in the U.S.?

We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.

What is 2-Pentylidenecyclohexanone, when used as a fragrance ingredient called on Korean labels?

Korea's MFDS standard Korean name is 2-펜틸리덴사이클로헥사논 (착향제로 사용될 때).

What is the CAS number of 2-Pentylidenecyclohexanone, when used as a fragrance ingredient?

CAS 25677-40-1 (from official records).