Ask KBeauty Verified™

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

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Thuja Occidentalis Bark Extract

Korean: 서양측백나무껍질추출물 · Functions: skin conditioning

KR South Korea (MFDS)

Restricted MFDS restricted ingredients

Conditions (official MFDS text, Korean):
과산화물가가 10mmol/L을 초과하는 경우에 한하여 금지

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

EU European Union (CosIng)

Restricted Annex III/119

Conditions: Peroxide value less than 10 mmoles/L (15)

Required label warning: (15 ) This limit applies to the substance and not to the finished cosmetic product.’

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

THUJA OCCIDENTALIS BARK EXTRACT 서양측백나무껍질추출물

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 Thuja Occidentalis Bark Extract 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 Thuja Occidentalis Bark Extract banned in South Korea?

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

Is Thuja Occidentalis Bark Extract 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 Thuja Occidentalis Bark Extract used for in cosmetics?

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

What is Thuja Occidentalis Bark Extract called on Korean labels?

Korea's MFDS standard Korean name is 서양측백나무껍질추출물.