Ask KBeauty Verified™

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

Reading time:

ChatGPT: 2 Claude: 0 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 0

Read by AI & crawlers

ChatGPT2

Claude0

Google · Gemini0

Perplexity0

Meta AI0

Amazon0

Others0

Named by what the crawler says it is; look-alikes we detect are counted under Others. Google · Gemini includes Googlebot, Google’s search crawler, whose index Google also uses for its AI features; other search engines and bots are in Others. AI visibility →

2-Hexylidene cyclopentanone

Korean: 2-헥실리덴사이클로펜타논 · CAS 17373-89-6 ·

KR South Korea (MFDS)

Restricted MFDS restricted ingredients

Maximum: 0.06%

Conditions (official MFDS text, Korean):
* 배합한도 : 0.06%

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

EU European Union (CosIng)

No specific rule on file.

US United States (FDA)

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

Also listed as

2-Hexylidene cyclopentanone 2-헥실리덴사이클로펜타논

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-Hexylidene cyclopentanone banned in the European Union?

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

Is 2-Hexylidene cyclopentanone banned in South Korea?

In Korea's MFDS records it is listed as “Restricted” (MFDS — cosmetic ingredient use restrictions). The maximum allowed is 0.06%. A restricted ingredient is allowed within the stated conditions.

Is 2-Hexylidene cyclopentanone 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-Hexylidene cyclopentanone called on Korean labels?

Korea's MFDS standard Korean name is 2-헥실리덴사이클로펜타논.

What is the CAS number of 2-Hexylidene cyclopentanone?

CAS 17373-89-6 (from official records).