Ask KBeauty Verified™

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

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Allyl Butyrate

CAS 2051-78-7 · Functions: perfuming

KR South Korea (MFDS)

No specific rule on file.

EU European Union (CosIng)

Restricted Annex III/135

Conditions: Level of free allyl alcohol in the ester should be less than 0.1%

Source: EU CosIng — Annex III · 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.

Also listed as

ALLYL BUTYRATE

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 Allyl Butyrate banned in the European Union?

In the EU's CosIng records it is listed as “Restricted” (EU CosIng — Annex III). A restricted ingredient is allowed within the stated conditions.

Is Allyl Butyrate 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 Allyl Butyrate 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 Allyl Butyrate used for in cosmetics?

The EU's CosIng inventory lists its functions as: perfuming.

What is the CAS number of Allyl Butyrate?

CAS 2051-78-7 (from official records).