Hydroxybutyric Acid/Hydroxypentanoic Acid Copolymer

INCI: HYDROXYBUTYRIC ACID/HYDROXYPENTANOIC ACID COPOLYMER

CAS Number
Not assigned (polymer)
Function
Film forming agent, skin conditioning agent
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” no specific CFR restriction; not evaluated individually by CIR

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Limited independent toxicological data; safety supported by polymer exclusion criteria (MW >1000 Da, biodegradable, monomers are physiological metabolites); supplier safety data should be obtained for CPSR

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Concern Level: Moderate

Frequently Asked Questions

Is Hydroxybutyric Acid/Hydroxypentanoic Acid Copolymer safe in cosmetics?

Limited independent toxicological data; safety supported by polymer exclusion criteria (MW >1000 Da, biodegradable, monomers are physiological metabolites); supplier safety data should be obtained for CPSR The EU classifies Hydroxybutyric Acid/Hydroxypentanoic Acid Copolymer as "permitted". Safety rating: GOOD.

Is Hydroxybutyric Acid/Hydroxypentanoic Acid Copolymer allowed in the EU?

Hydroxybutyric Acid/Hydroxypentanoic Acid Copolymer EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Hydroxybutyric Acid/Hydroxypentanoic Acid Copolymer do in cosmetics?

Hydroxybutyric Acid/Hydroxypentanoic Acid Copolymer functions as: Film forming agent, skin conditioning agent. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (polymer).

What is the Margin of Safety for Hydroxybutyric Acid/Hydroxypentanoic Acid Copolymer?

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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