Ingredient Directory
High ConcernVegan Evaluator Flag

TEA-Lauryl Sulfate

Triethanolamine dodecyl sulfate

Safety Flags
Safety Notes

Triethanolamine (TEA) counterion raises significant concern: TEA can react with nitrosating agents (certain preservatives, contaminating nitrites) to form nitrosamines, which are potential carcinogens. EU regulations restrict TEA levels to control nitrosamine formation. Irritation profile similar to SLS. Considered an older formulation technology; largely being replaced by better alternatives in modern formulations. Not recommended in products where nitrosating agents may be present.

Function & Common Use

Function

Surfactant / Cleansing Agent / Foaming Agent

Category

Surfactants

Common In

Older shampoos, liquid soaps, industrial/professional cleansers

Origin

Synthetic

Concentration Limits

India (CDSCO)

None

EU Cosmetics Reg.

None

US FDA (21 CFR)

None

Korea (MFDS)

None

Format restriction: Avoid combining with nitrosating agents

Baby restriction: Not recommended for infant products

Pregnancy: No

IFRA: No

Frequently Asked Questions

Is TEA-Lauryl Sulfate safe to use in skincare?

TEA-Lauryl Sulfate has a High concern rating. Triethanolamine (TEA) counterion raises significant concern: TEA can react with nitrosating agents (certain preservatives, contaminating nitrites) to form nitrosamines, which are potential carcinogens. EU regulations restrict TEA levels to control nitrosamine formation. Irritation profile similar to SLS. Considered an older formulation technology; largely being replaced by better alternatives in modern formulations. Not recommended in products where nitrosating agents may be present.

Is TEA-Lauryl Sulfate allowed in India?

TEA-Lauryl Sulfate is currently classified as "Permitted" under Indian cosmetics regulations. The maximum permitted concentration is None.

What is TEA-Lauryl Sulfate used for in cosmetics?

TEA-Lauryl Sulfate functions as: Surfactant / Cleansing Agent / Foaming Agent. It is commonly found in: Older shampoos, liquid soaps, industrial/professional cleansers.

Can TEA-Lauryl Sulfate cause an allergic reaction?

Yes. TEA-Lauryl Sulfate has an allergen flag (No). If you have sensitive skin or known fragrance/contact allergies, patch-test products containing this ingredient before full use.

Is TEA-Lauryl Sulfate safe for babies?

TEA-Lauryl Sulfate has baby/child restrictions: Not recommended for infant products. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.

TCS Assessment
High Concern
Data Confidence
High
Based on peer-reviewed safety data, regulatory status, and expert review by The Clean Sheet panel.

Regulatory Status

India (CDSCO)
Permitted
EU
Permitted
US FDA
Permitted
Korea (MFDS)
Permitted
Australia (TGA)
Permitted
Canada (NHPID)
Permitted

EU Annex: None

Identifiers

CAS139-96-8
EC205-388-7

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