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  • beauty
  • cleaning

Hydrolyzed yeast protein

CAS 100684-36-4

Concern score

Not assessed — no hazard data yet.

Hydrolyzed yeast protein in plain language

What it does

Used in cosmetics as a skin-conditioning agent, a hair conditioner and an antistatic agent.

  • Skin conditioning
  • Hair conditioning
  • Antistatic
  • Conditioner
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Hydrolyzed yeast protein appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • EUCosIngActiveProtein hydrolyzates, yeast. Substance obtained by acidic, alkaline, or enzymatic hydrolysis of saccharomyces cerevisiae composed primarily of amino acids, peptides, and proteins. It may contain impurities consisting chiefly of carbohydrates and lipids along with smaller quantities of miscellaneous organic substances of biological origin
    • Protein hydrolyzates, yeast. Substance obtained by acidic, alkaline, or enzymatic hydrolysis of saccharomyces cerevisiae composed primarily of amino acids, peptides, and proteins. It may contain impurities consisting chiefly of carbohydrates and lipids along with smaller quantities of miscellaneous organic substances of biological originSource →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 62 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Anti-static agent, Softener and conditioner.
    • EPA CPDat observed this chemical in 62 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Anti-static agent, Softener and conditioner.Source →

Expert safety opinions

No expert opinion on file for Hydrolyzed yeast protein. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for Hydrolyzed yeast protein yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

3 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EPA Chemical and Products Database

    exposure · updated September 2018

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Hydrolyzed yeast protein in a product composition. These are source records, not Greenveil catalog products.

Source records

62

Named organisations

6

Personal care

Typical roles

Skin conditioningHair conditioningAntistaticConditioner
See products using Hydrolyzed yeast protein →

Catalog

Found in these products

Their ingredient lists include Hydrolyzed yeast protein; each product's own rating depends on its whole formula, so it is shown on the product page, not here.