Sesquiethoxytriethanolamine

INCI: SESQUIETHOXYTRIETHANOLAMINE [^1_12]

CAS Number
Not publicly listed in major databases [^1_12]
Function
Buffering [^1_12]
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status restricted
EU Max Conc. 2.5%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted for cosmetic use; TEA family compounds assessed by CIR [^1_14]

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
moderate
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Critical: Must not be used with nitrosating agents โ€” nitrosamine formation risk; minimum purity requirements for TEA moiety; secondary amine content must be controlled; max 2.5% in EU [^1_13][^1_14]

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Concern Level: Moderate

Frequently Asked Questions

Is Sesquiethoxytriethanolamine safe in cosmetics?

Critical: Must not be used with nitrosating agents โ€” nitrosamine formation risk; minimum purity requirements for TEA moiety; secondary amine content must be controlled; max 2.5% in EU [^1_13][^1_14] The EU classifies Sesquiethoxytriethanolamine as "restricted". Safety rating: MODERATE.

Is Sesquiethoxytriethanolamine allowed in the EU?

Sesquiethoxytriethanolamine EU regulatory status: restricted. Maximum allowed concentration: 2.5%. This is based on EU Regulation 1223/2009 and its amendments.

What does Sesquiethoxytriethanolamine do in cosmetics?

Sesquiethoxytriethanolamine functions as: Buffering [^1_12]. It is classified as a cosmetic ingredient in our database. CAS number: Not publicly listed in major databases [^1_12].

What is the Margin of Safety for Sesquiethoxytriethanolamine?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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