Good Cosmetic Ingredient NOAEL Data

1,5-Pentanediol

INCI: 1,5-PENTANEDIOL

CAS Number
111-29-5
Function
Solvent
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR: Safe as used at reported concentrations

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

3 study endpoints found for 1,5-Pentanediol. 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
NOEL 1000 mg/kg bw/day oral rat oral REACH
NOAEL 400 mg/kg bw/day oral rat oral REACH
NOAEL 1000 mg/kg bw/day oral rat oral REACH

Expert Verdict

CIR concluded safety for 1,5-Pentanediol among a group of alkane diols.

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Concern Level: Low

Regulatory Flags

eu_children_restricted

Frequently Asked Questions

Is 1,5-Pentanediol safe in cosmetics?

CIR concluded safety for 1,5-Pentanediol among a group of alkane diols. The EU classifies 1,5-Pentanediol as "permitted". Safety rating: GOOD. 3 toxicological study endpoint(s) are available in our database.

Is 1,5-Pentanediol allowed in the EU?

1,5-Pentanediol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does 1,5-Pentanediol do in cosmetics?

1,5-Pentanediol functions as: Solvent. It is classified as a cosmetic ingredient in our database. CAS number: 111-29-5.

What is the Margin of Safety for 1,5-Pentanediol?

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 1,5-Pentanediol?

The NOAEL (No Observed Adverse Effect Level) for 1,5-Pentanediol is 1000 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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