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  • beauty
  • industrial

Hydrolyzed animal keratin

CAS 65997-21-9

Also registered as 1 other CAS number

69430-36-0

Concern score

Not assessed — no hazard data yet.

Hydrolyzed animal keratin in plain language

What it is

On cosmetic ingredient lists it appears as “Hydrolyzed hair keratin”.

Also known as Hydrolyzed hair keratin · Hydrolyzed keratin

What it does

Used in cosmetics as a humectant, a skin-conditioning agent and a hair conditioner. Keratins, hydrolyzates. A biological material consisting predominantly of partially hydrolyzed keratin.

  • Humectant
  • Skin conditioning
  • Hair conditioning
  • Antistatic
  • Film forming
  • 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 animal keratin appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActive2 entries
    • Keratins, hydrolyzates. A biological material consisting predominantly of partially hydrolyzed keratin Restriction: II/416Source →
    • Keratins, hydrolyzates. A biological material consisting predominantly of partially hydrolyzed keratinSource →
  • USEPAcommercial use observed2 entries
    • EPA CPDat observed this chemical in 26 composition records across product categories including Furniture and furnishings. EPA CPDat classifies this chemical for functional uses including upholstry: crown.Source →
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.Source →

Expert safety opinions

No expert opinion on file for Hydrolyzed animal keratin. 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 animal keratin 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 2017-06-23

    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 animal keratin in a product composition. These are source records, not Greenveil catalog products.

Source records

26

Named organisations

3

Furniture and furnishings

Typical roles

HumectantSkin conditioningHair conditioningAntistaticFilm formingConditioner
See products using Hydrolyzed animal keratin →

Catalog

Found in these products

Cosmetic and personal-care products that list Hydrolyzed animal keratin are shown first. Their ingredient lists include Hydrolyzed animal keratin; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 234 →Find products without it →