Potassium Tartrate

INCI: POTASSIUM TARTRATE

CAS Number
921-53-9
Function
pH adjuster, chelating agent that complexes heavy metal ions
Safety Rating
EXCELLENT

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes GRAS (related salt potassium sodium tartrate affirmed); FDA-approved in OTC antacid products; CIR deferred review based on FDA safety assessment

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Well-characterized ingredient with dual food and cosmetic safety track record. No significant concerns at cosmetic use levels.

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Concern Level: None

Regulatory Flags

epa_safer_alternative

Frequently Asked Questions

Is Potassium Tartrate safe in cosmetics?

Well-characterized ingredient with dual food and cosmetic safety track record. No significant concerns at cosmetic use levels. The EU classifies Potassium Tartrate as "permitted". Safety rating: EXCELLENT.

Is Potassium Tartrate allowed in the EU?

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

What does Potassium Tartrate do in cosmetics?

Potassium Tartrate functions as: pH adjuster, chelating agent that complexes heavy metal ions. It is classified as a cosmetic ingredient in our database. CAS number: 921-53-9.

What is the Margin of Safety for Potassium Tartrate?

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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