Korean: 다이옥세인 · CAS 123-91-1 ·
Prohibited MFDS prohibited ingredients
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 16, 2026
Prohibited Annex II/343
Source: EU CosIng — Annex II · checked Oct 16, 2026
Limited in some U.S. states VT-DIOXANE
Conditions: Vermont: Act 131 of 2024 — 1,4-dioxane limit · 9 V.S.A. §2494b(c) · In force since 2026-01-01 · must be below 10 ppm (contaminant limit)
Source: Vermont — Act 131 of 2024 — 1,4-dioxane limit · checked Oct 16, 2026
Limited in some U.S. states NY-DIOXANE
Conditions: New York: 1,4-dioxane limits (L. 2019 ch. 613) · N.Y. ECL §37-0117 · In force since 2022-12-31 · cosmetics below 10 ppm; personal care products below 1 ppm (contaminant limit)
Source: New York — 1,4-dioxane limits (L. 2019 ch. 613) · checked Oct 16, 2026
How Dioxane is treated in 6 more markets, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.
| Market | Status | Conditions |
|---|---|---|
| CN China | Prohibited | — |
| AS ASEAN (10 countries) | Prohibited | — |
| TW Taiwan | Prohibited | — |
| CA Canada | Prohibited | — |
| BR Brazil | Prohibited | — |
| AR Argentina | Prohibited | — |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 16, 2026
Dioxane 다이옥세인
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.