CAS 123-91-1
Is 1,4-Dioxane banned where you sell?
5 markets have rules for it. Selling something that contains it? Check it free, no account needed.
- Free
- No account needed
- The law behind every rule
Status
Status by market
Banned, limited, needs a warning, or no rule we know of. US states also follow federal rules, shown in their own row.
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025; Packaged food and beverages: 7 Oct 2026; Consumer electronics and small appliances: 1 Jan 2025; Batteries, e-bikes and power banks: 1 Oct 2026), and this doesn't mean it's allowed.
Warning required when exposure exceeds the threshold (NSRL (µg/day): 30). In force since 1 Jan 1989.
- Chemical
- 1,4-Dioxane
- Type of toxicity
- cancer
- Listed by
- the State's Qualified Experts (SQE)
- CAS No.
- 123-91-1
- Date listed
- 1 Jan 1988
- NSRL or MADL (µg/day)
- 30
Prop 65 list row: 1,4-Dioxane · fetched 2026-10-08
California OEHHA: 27 CCR 27001(opens in a new tab)We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025; Batteries, e-bikes and power banks: 16 Sep 2023), and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: not covered; Consumer electronics and small appliances: 1 Jan 2025), and this doesn't mean it's allowed.
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
For Cosmetics and personal care: Banned. In force since 1 Jan 2026.
“(6) 1, 4-dioxane (CAS 123-91-1);”
For Cosmetics and personal care: Banned. In force since 1 Jan 2026.
“A manufacturer shall not knowingly manufacture, sell, offer for sale, distribute for sale, or distribute for use in this State any cosmetic or menstrual product that contains 1,4, dioxane at or exceeding 10 parts per million.”
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
For Cosmetics and personal care: Banned. In force since 11 Jul 2013.
From the consolidated text: Dioxane · 123-91-1 · 204-661-8
Annex II entry 343 · fetched 2026-10-09
European Commission / Publications Office (CELLAR): Reg. (EC) 1223/2009 Annexes II-VI(opens in a new tab)For Cosmetics and personal care: Banned. In force, start date unknown.
From the official list: Dioxane · 123-91-1 · 204-661-8
Annex II entry 343 · fetched 2026-10-10
The National Archives (legislation.gov.uk): Reg. (EC) 1223/2009 (retained) Annexes II-VI(opens in a new tab)We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 12 Jul 2024; Packaged food and beverages: 1 Apr 2026; Consumer electronics and small appliances: 3 Sep 2026; Batteries, e-bikes and power banks: 1 Sep 2026), and this doesn't mean it's allowed.
For Cosmetics and personal care: Banned. In force under the consolidated notice effective 18 Mar 2026; earlier versions are not in our data.
From the official list: 디옥산 · 123-91-1
Schedule 1 디옥산 · fetched 2026-10-09
Ministry of Food and Drug Safety / National Law Information Center (law.go.kr): 화장품 안전기준 등에 관한 규정 별표 1, 별표 2, 제6조(opens in a new tab)For Cosmetics and personal care: Limit 100 µg/g (content basis). In force under the consolidated notice effective 18 Mar 2026; earlier versions are not in our data.
“7. 디옥산 : 100㎍/g이하”
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025; Packaged food and beverages: 7 Oct 2026; Consumer electronics and small appliances: 1 Jan 2025; Batteries, e-bikes and power banks: 1 Oct 2026), and this doesn't mean it's allowed.
- Status
- Warning required
- Requirement, dates and source
Warning required when exposure exceeds the threshold (NSRL (µg/day): 30). In force since 1 Jan 1989.
- Chemical
- 1,4-Dioxane
- Type of toxicity
- cancer
- Listed by
- the State's Qualified Experts (SQE)
- CAS No.
- 123-91-1
- Date listed
- 1 Jan 1988
- NSRL or MADL (µg/day)
- 30
Prop 65 list row: 1,4-Dioxane · fetched 2026-10-08
California OEHHA: 27 CCR 27001(opens in a new tab)
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025; Batteries, e-bikes and power banks: 16 Sep 2023), and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: not covered; Consumer electronics and small appliances: 1 Jan 2025), and this doesn't mean it's allowed.
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025, and this doesn't mean it's allowed.
- Status
- Banned
- Requirement, dates and source
For Cosmetics and personal care: Banned. In force since 1 Jan 2026.
“(6) 1, 4-dioxane (CAS 123-91-1);”
2494b(a)(6) · fetched 2026-10-08Vermont Legislature / Attorney General: 9 V.S.A. 2494a-2494c (2024 Act 131 Sec. 1-2)(opens in a new tab) For Cosmetics and personal care: Banned. In force since 1 Jan 2026.
“A manufacturer shall not knowingly manufacture, sell, offer for sale, distribute for sale, or distribute for use in this State any cosmetic or menstrual product that contains 1,4, dioxane at or exceeding 10 parts per million.”
9 V.S.A. 2494b(c) · fetched 2026-10-08Vermont Legislature / Attorney General: 9 V.S.A. 2494a-2494c (2024 Act 131 Sec. 1-2)(opens in a new tab)
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 1 Jan 2025), and this doesn't mean it's allowed.
- Status
- Banned
- Requirement, dates and source
For Cosmetics and personal care: Banned. In force since 11 Jul 2013.
From the consolidated text: Dioxane · 123-91-1 · 204-661-8
Annex II entry 343 · fetched 2026-10-09
European Commission / Publications Office (CELLAR): Reg. (EC) 1223/2009 Annexes II-VI(opens in a new tab)
- Status
- Banned
- Requirement, dates and source
For Cosmetics and personal care: Banned. In force, start date unknown.
From the official list: Dioxane · 123-91-1 · 204-661-8
Annex II entry 343 · fetched 2026-10-10
The National Archives (legislation.gov.uk): Reg. (EC) 1223/2009 (retained) Annexes II-VI(opens in a new tab)
- Status
- No known rule
- Requirement, dates and source
We have no rule for it here. Our coverage starts 1 Jan 2025 (Home and kitchen goods: 1 Jan 2025; Cosmetics and personal care: 12 Jul 2024; Packaged food and beverages: 1 Apr 2026; Consumer electronics and small appliances: 3 Sep 2026; Batteries, e-bikes and power banks: 1 Sep 2026), and this doesn't mean it's allowed.
- Status
- Banned
- Requirement, dates and source
For Cosmetics and personal care: Banned. In force under the consolidated notice effective 18 Mar 2026; earlier versions are not in our data.
From the official list: 디옥산 · 123-91-1
Schedule 1 디옥산 · fetched 2026-10-09
Ministry of Food and Drug Safety / National Law Information Center (law.go.kr): 화장품 안전기준 등에 관한 규정 별표 1, 별표 2, 제6조(opens in a new tab)For Cosmetics and personal care: Limit 100 µg/g (content basis). In force under the consolidated notice effective 18 Mar 2026; earlier versions are not in our data.
“7. 디옥산 : 100㎍/g이하”
Article 6(2)7. · fetched 2026-10-09Ministry of Food and Drug Safety / National Law Information Center (law.go.kr): 화장품 안전기준 등에 관한 규정 별표 1, 별표 2, 제6조(opens in a new tab)
California
Prop 65 listing
California's list of chemicals known to cause cancer or reproductive harm.
- Listing
- Listed 1988-01-01 (cancer). Grace period: "Proposition 65 warning requirements do not apply until 12 months after the chemical has been listed" (Appendix A); listing date plus 12 months.
- Warning applies from
- 1 Jan 1989
- Requirement
- Warning required when exposure exceeds the threshold (NSRL (µg/day): 30)
- Warning wording
- This product can expose you to 1,4-Dioxane, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
- Chemical
- 1,4-Dioxane
- Type of toxicity
- cancer
- Listed by
- the State's Qualified Experts (SQE)
- CAS No.
- 123-91-1
- Date listed
- 1 Jan 1988
- NSRL or MADL (µg/day)
- 30
Prop 65 list row: 1,4-Dioxane · fetched 2026-10-08
California OEHHA: 27 CCR 27001(opens in a new tab)Groups
Group memberships
Groups that name this substance. Markets define groups like PFAS in different ways.
Banned chemicals in cosmetics and menstrual products in Vermont (US state): The chemicals of 9 V.S.A. 2494b(a)(3)-(14) when intentionally added to a cosmetic or menstrual product in any amount: formaldehyde, methylene glycol, mercury and compounds, 1,4-dioxane, isopropylparaben, isobutylparaben, lead and compounds, asbestos, triclosan, m-phenylenediamine and salts (the statute prints CAS 108-42-5; the usual CAS 108-45-2 is also listed), o-phenylenediamine and salts, quaternium-15.
“any cosmetic or menstrual product to which the following chemicals or chemical classes have been intentionally added in any amount:”
9 V.S.A. 2494b(a) (excerpt) · fetched 2026-10-08Vermont Legislature / Attorney General: 9 V.S.A. 2494b(a)(opens in a new tab)
Records
Recalls and alerts
Recalls, safety alerts and Prop 65 notices that name 1,4-Dioxane, with a link to the original. A Prop 65 notice is a claim by the sender, not a ruling.
2 records dated 27 May 2024 to 9 Apr 2026. Most recent shown.
Show the 2 most recent records
- Prop 65 notices
Serum Sprays for Anti-Aging and/or Skin Firming
Cosmetics and personal care
- Substance
- 1,4-Dioxane
- Party
- Beauty Pie Limited, Beauty Pie USA, Inc.
- Category
- Leave-on skin care
- Prop 65 notices
KiGold Ginseng Blossom Shampoo
Cosmetics and personal care
- Substance
- 1,4-Dioxane
- Party
- Asamo Cosmetic International Corp., Costco Wholesale Corporation
- Category
- Shampoo and conditioner
See also
Related
- Check a product
Tell us it's in your product and see what applies where you sell.
- European Union
When our coverage starts, the laws and the sources.
- Great Britain (England, Scotland, Wales)
When our coverage starts, the laws and the sources.
- South Korea
When our coverage starts, the laws and the sources.
- Cosmetics and personal care
Every rule for this kind of product, in each market.
- Batteries, e-bikes and power banks
Every rule for this kind of product, in each market.
- Consumer electronics and small appliances
Every rule for this kind of product, in each market.
Alerts
Get an email when these rules change.
Check a product free, no account needed. Save it, and you see when a rule that affects it changes, and Team emails you the day it does.