Ask KBeauty Verified™

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

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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 →

Ammonium Acrylates/Methylstyrene/Styrene Copolymer

Korean: 암모늄아크릴레이트/메틸스타이렌/스타이렌코폴리머 · Functions: film forming

KR South Korea (MFDS)

No specific rule on file.

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.

Products listing Ammonium Acrylates/Methylstyrene/Styrene Copolymer

Unleashia A by Unleashia Non Stop Liquid Eyeliner Eye · $9.99

0 1 0 0 0 0 0 1

Nature Republic Botanical Hyper Liner (01 Black & 02 Brown) Eye · $15.00

0 2 0 0 0 0 0 2

Also listed as

Ammonium Acrylates/Methylstyrene/Styrene Copolymer 암모늄아크릴레이트/메틸스타이렌/스타이렌코폴리머

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 Ammonium Acrylates/Methylstyrene/Styrene Copolymer 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 Ammonium Acrylates/Methylstyrene/Styrene Copolymer 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 Ammonium Acrylates/Methylstyrene/Styrene Copolymer 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 Ammonium Acrylates/Methylstyrene/Styrene Copolymer used for in cosmetics?

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

What is Ammonium Acrylates/Methylstyrene/Styrene Copolymer called on Korean labels?

Korea's MFDS standard Korean name is 암모늄아크릴레이트/메틸스타이렌/스타이렌코폴리머.

Which K-beauty products contain Ammonium Acrylates/Methylstyrene/Styrene Copolymer?

2 products we checked list it, for example Unleashia A by Unleashia Non Stop Liquid Eyeliner, Nature Republic Botanical Hyper Liner (01 Black & 02 Brown).