Phytosteryl Butyrate

CAS Number
Not publicly assigned (ester of phytosterols + butyric acid)
Function
Softener and conditioner
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes FDA permitted; included in CIR Phytosterols group review (2014) as safe within group assessment; no VCRP uses or concentration data reported at time of review

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

Butyric acid has a strong odor; ensure ester purity to avoid organoleptic issues. Limited standalone use data; CIR safety conclusion relies on group read-across from phytosterols assessment.

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Concern Level: Low

Frequently Asked Questions

Is Phytosteryl Butyrate safe in cosmetics?

Butyric acid has a strong odor; ensure ester purity to avoid organoleptic issues. Limited standalone use data; CIR safety conclusion relies on group read-across from phytosterols assessment. The EU classifies Phytosteryl Butyrate as "permitted". Safety rating: GOOD.

Is Phytosteryl Butyrate allowed in the EU?

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

What does Phytosteryl Butyrate do in cosmetics?

Phytosteryl Butyrate functions as: Softener and conditioner. It is classified as a cosmetic ingredient in our database. CAS number: Not publicly assigned (ester of phytosterols + butyric acid).

What is the Margin of Safety for Phytosteryl Butyrate?

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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