Moderate Cosmetic Ingredient NOAEL Data

Potassium Iodide

INCI: POTASSIUM IODIDE

CAS Number
7681-11-0
Function
Skin conditioning; also used as an oxidizing agent in cosmetics
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes FDA-approved as OTC drug active (thyroid blocking agent); permitted in cosmetics; also GRAS as food additive

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
high
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

10 study endpoints found for Potassium Iodide. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 75 mg/kg bw/day oral rat Reproductive COSMOS_DB
NOAEL 25 mg/kg bw/day oral rat Subchronic COSMOS_DB
NOAEL 6 mg/kg bw/day oral syrian hamster Carcinogenicity COSMOS_DB
NOAEL 125 mg/kg bw/day oral rat Reproductive COSMOS_DB
NOAEL 125 mg/kg bw/day oral rat Reproductive COSMOS_DB
NOAEL 125 mg/kg bw/day oral rat Reproductive COSMOS_DB
NOAEL 7.5 mg/kg bw/day oral rabbit Reproductive COSMOS_DB
NOAEL 160 mg/kg bw/day oral syrian hamster Reproductive COSMOS_DB
NOAEL 150 mg/kg bw/day oral rat Reproductive COSMOS_DB
NOAEL 41 mg/kg bw/day oral swine Reproductive COSMOS_DB

Expert Verdict

Thyroid disruption risk with excessive or prolonged dermal exposure; contraindicated for individuals with thyroid disorders; iododerma risk; systemic absorption is a significant concern

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Concern Level: High

Regulatory Flags

fda_food_additive

Frequently Asked Questions

Is Potassium Iodide safe in cosmetics?

Thyroid disruption risk with excessive or prolonged dermal exposure; contraindicated for individuals with thyroid disorders; iododerma risk; systemic absorption is a significant concern The EU classifies Potassium Iodide as "permitted". Safety rating: MODERATE. 10 toxicological study endpoint(s) are available in our database.

Is Potassium Iodide allowed in the EU?

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

What does Potassium Iodide do in cosmetics?

Potassium Iodide functions as: Skin conditioning; also used as an oxidizing agent in cosmetics. It is classified as a cosmetic ingredient in our database. CAS number: 7681-11-0.

What is the Margin of Safety for Potassium Iodide?

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.

What is the NOAEL for Potassium Iodide?

The NOAEL (No Observed Adverse Effect Level) for Potassium Iodide is 75 mg/kg bw/day based on a Reproductive study via oral route in rat. A total of 10 study endpoints are available. Source: COSMOS_DB.

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