Isopropyl Sorbate

INCI: ISOPROPYL SORBATE

CAS Number
Not confirmed in retrieved sources (ester of isopropyl alcohol and sorbic acid)
Function
Antimicrobial - helps control the growth of microorganisms (bacteria, mold, yeast) in cosmetic formulations
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - CIR Expert Panel reviewed as part of the alkyl esters safety assessment and found safe in present practices of use when formulated to be non-irritating

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

Low irritation potential; comedogenic rating of 1/5; typically used at concentrations under 1%; related to sorbic acid, which has a well-established safety profile. Oil-soluble preservative; disrupts microbial cell membranes (mechanism borrowed from parent sorbic acid); disperses evenly in oil-phase formulations without leaving a tacky feel; does not create an occlusive film

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Concern Level: Moderate

Frequently Asked Questions

Is Isopropyl Sorbate safe in cosmetics?

Low irritation potential; comedogenic rating of 1/5; typically used at concentrations under 1%; related to sorbic acid, which has a well-established safety profile. Oil-soluble preservative; disrupts microbial cell membranes (mechanism borrowed from parent sorbic acid); disperses evenly in oil-phase formulations without leaving a tacky feel; does not create an occlusive film The EU classifies Isopropyl Sorbate as "permitted". Safety rating: MODERATE.

Is Isopropyl Sorbate allowed in the EU?

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

What does Isopropyl Sorbate do in cosmetics?

Isopropyl Sorbate functions as: Antimicrobial - helps control the growth of microorganisms (bacteria, mold, yeast) in cosmetic formulations. It is classified as a cosmetic ingredient in our database. CAS number: Not confirmed in retrieved sources (ester of isopropyl alcohol and sorbic acid).

What is the Margin of Safety for Isopropyl Sorbate?

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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