MEA-Thiolactate

INCI: MEA-THIOLACTATE

CAS Number
63524-55-0
Function
Depilatory agent / hair waving agent (reducing agent that breaks disulfide bonds in keratin)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status restricted
EU Max Conc. 8%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed; no specific prohibition. Thiolactic acid derivatives are recognized cosmetic ingredients; CIR has reviewed thioglycolate/thiolactate compounds

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Strong reducing agent-can cause skin irritation, chemical burns at high concentrations or incorrect pH; nitrosamine risk from MEA; sulfur odor. The thiolactic acid moiety is structurally related to thioglycolic acid but provides slightly different curl/wave characteristics; the MEA counterion helps maintain alkaline pH needed for hair restructuring

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Concern Level: Moderate

Frequently Asked Questions

Is MEA-Thiolactate safe in cosmetics?

Strong reducing agent-can cause skin irritation, chemical burns at high concentrations or incorrect pH; nitrosamine risk from MEA; sulfur odor. The thiolactic acid moiety is structurally related to thioglycolic acid but provides slightly different curl/wave characteristics; the MEA counterion helps maintain alkaline pH needed for hair restructuring The EU classifies MEA-Thiolactate as "restricted". Safety rating: MODERATE.

Is MEA-Thiolactate allowed in the EU?

MEA-Thiolactate EU regulatory status: restricted. Maximum allowed concentration: 8%. This is based on EU Regulation 1223/2009 and its amendments.

What does MEA-Thiolactate do in cosmetics?

MEA-Thiolactate functions as: Depilatory agent / hair waving agent (reducing agent that breaks disulfide bonds in keratin). It is classified as a cosmetic ingredient in our database. CAS number: 63524-55-0.

What is the Margin of Safety for MEA-Thiolactate?

not established 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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