Ask KBeauty Verified™

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

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Google · Gemini0

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Meta AI0

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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 →

Hydroxymethyl-2-thiourea

KR South Korea (MFDS)

No specific rule on file.

EU European Union (CosIng)

Prohibited only in certain forms or uses Annex II/321

Conditions: Thiourea and its derivatives, with the exception of the one listed in Annex III

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.

Also listed as

Hydroxymethyl-2-thiourea

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 Hydroxymethyl-2-thiourea banned in the European Union?

In the EU's CosIng records it is listed as “Prohibited only in certain forms or uses” (EU CosIng — Annex II). It is not a general ban — the condition reads: “Thiourea and its derivatives, with the exception of the one listed in Annex III”

Is Hydroxymethyl-2-thiourea 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 Hydroxymethyl-2-thiourea 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.