Hydrolyzed Yeast Protein

INCI: HYDROLYZED YEAST PROTEIN

CAS Number
100684-36-4
Function
Antistatic, hair conditioning, skin conditioning
Safety Rating
EXCELLENT

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” CIR assessed in 2023 Final Report and found safe as used

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Best-documented ingredient in this set with CIR data available. Standard hydrolyzed-protein molecular weight caution applies โ€” keep weight-average MW โ‰ค 3,500 Da to minimize sensitization. Derived from Saccharomyces cerevisiae.

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Concern Level: Low

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Hydrolyzed Yeast Protein safe in cosmetics?

Best-documented ingredient in this set with CIR data available. Standard hydrolyzed-protein molecular weight caution applies โ€” keep weight-average MW โ‰ค 3,500 Da to minimize sensitization. Derived from Saccharomyces cerevisiae. The EU classifies Hydrolyzed Yeast Protein as "permitted". Safety rating: EXCELLENT.

Is Hydrolyzed Yeast Protein allowed in the EU?

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

What does Hydrolyzed Yeast Protein do in cosmetics?

Hydrolyzed Yeast Protein functions as: Antistatic, hair conditioning, skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 100684-36-4.

What is the Margin of Safety for Hydrolyzed Yeast Protein?

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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