Good Cosmetic Ingredient NOAEL Data

Propylene Carbonate

INCI: PROPYLENE CARBONATE

CAS Number
108-32-7
Function
Solvent, Viscosity-decreasing agent
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted; FDA-approved inactive ingredient in topical drugs (max 3000 mg/day); 13,340 formulations listed in 2024 RLD

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

3 study endpoints found for Propylene Carbonate. 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 >5000 mg/kg bw/day oral rat oral REACH
NOAEL >5000 mg/kg bw/day oral code:3544 oral REACH
NOAEL >1000 2106 1991 code:3544 inhalation REACH

Expert Verdict

Irritant when undiluted; moderate eye irritation at high concentrations; safe up to ~50% in leave-on (used up to 17.9%); insufficient data for airbrush delivery; not genotoxic, not carcinogenic

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Concern Level: Moderate

Regulatory Flags

epa_safer_alternative ifra_fragrance

Frequently Asked Questions

Is Propylene Carbonate safe in cosmetics?

Irritant when undiluted; moderate eye irritation at high concentrations; safe up to ~50% in leave-on (used up to 17.9%); insufficient data for airbrush delivery; not genotoxic, not carcinogenic The EU classifies Propylene Carbonate as "permitted". Safety rating: GOOD. 3 toxicological study endpoint(s) are available in our database.

Is Propylene Carbonate allowed in the EU?

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

What does Propylene Carbonate do in cosmetics?

Propylene Carbonate functions as: Solvent, Viscosity-decreasing agent. It is classified as a cosmetic ingredient in our database. CAS number: 108-32-7.

What is the Margin of Safety for Propylene Carbonate?

adequate 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 Propylene Carbonate?

The NOAEL (No Observed Adverse Effect Level) for Propylene Carbonate is >5000 mg/kg bw/day based on a oral study via oral route in rat. A total of 3 study endpoints are available. Source: REACH.

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