Poly-p-Phenylene Terephthalamide

CAS Number
24938-64-5
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes FDA no restriction; CIR assessment of modified terephthalate polymers concluded safe in practices of use

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Inhalation risk if used in powder or spray formats due to respirable fibre considerations. Not a concern in cream or lotion matrices.

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Concern Level: Low

Frequently Asked Questions

Is Poly-p-Phenylene Terephthalamide safe in cosmetics?

Inhalation risk if used in powder or spray formats due to respirable fibre considerations. Not a concern in cream or lotion matrices. The EU classifies Poly-p-Phenylene Terephthalamide as "permitted". Safety rating: GOOD.

Is Poly-p-Phenylene Terephthalamide allowed in the EU?

Poly-p-Phenylene Terephthalamide EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What is the Margin of Safety for Poly-p-Phenylene Terephthalamide?

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.

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