Potassium Tetrathionate

INCI: POTASSIUM TETRATHIONATE

CAS Number
13932-13-3
Function
Cosmetic function not well-established; primarily a laboratory/microbiology reagent
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not recognized as a typical cosmetic ingredient

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

Potassium tetrathionate is not a recognized cosmetic ingredient and is unsuitable for cosmetic use due to hazardous classification including skin irritation, serious eye irritation, and respiratory irritation hazards.

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Concern Level: Moderate

Frequently Asked Questions

Is Potassium Tetrathionate safe in cosmetics?

Potassium tetrathionate is not a recognized cosmetic ingredient and is unsuitable for cosmetic use due to hazardous classification including skin irritation, serious eye irritation, and respiratory irritation hazards. The EU classifies Potassium Tetrathionate as "permitted". Safety rating: MODERATE.

Is Potassium Tetrathionate allowed in the EU?

Potassium Tetrathionate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Potassium Tetrathionate do in cosmetics?

Potassium Tetrathionate functions as: Cosmetic function not well-established; primarily a laboratory/microbiology reagent. It is classified as a cosmetic ingredient in our database. CAS number: 13932-13-3.

What is the Margin of Safety for Potassium Tetrathionate?

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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