Hydrolyzed Carrageenan

INCI: HYDROLYZED CARRAGEENAN

CAS Number
53973-98-1 (synonymous with poligeenan / degraded carrageenan)
Function
Skin conditioning
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status restricted
US Notes CIR concluded insufficient data to determine safety. California Prop 65 listed (carcinogen โ€” degraded carrageenan).

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

CRITICAL โ€” IARC Group 2B carcinogen (degraded carrageenan/poligeenan); CIR Panel unable to distinguish cosmetic-grade hydrolyzed carrageenan from poligeenan; animal studies show colon tumor induction; California Prop 65 listed; no adequate manufacturing or impurity data provided to CIR.

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Concern Level: High

Frequently Asked Questions

Is Hydrolyzed Carrageenan safe in cosmetics?

CRITICAL โ€” IARC Group 2B carcinogen (degraded carrageenan/poligeenan); CIR Panel unable to distinguish cosmetic-grade hydrolyzed carrageenan from poligeenan; animal studies show colon tumor induction; California Prop 65 listed; no adequate manufacturing or impurity data provided to CIR. The EU classifies Hydrolyzed Carrageenan as "permitted". Safety rating: POOR.

Is Hydrolyzed Carrageenan allowed in the EU?

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

What does Hydrolyzed Carrageenan do in cosmetics?

Hydrolyzed Carrageenan functions as: Skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 53973-98-1 (synonymous with poligeenan / degraded carrageenan).

What is the Margin of Safety for Hydrolyzed Carrageenan?

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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