Keratins, hydrolyzates.
How much products actually contain
42 products state the amountmedian 0.1%
- under 0.01% 14
- 0.01–0.1% 7
- 0.1–1% 18
- 1% or more 3
Amounts are mostly stated by products named after the ingredient, so they may lean towards token amounts.
Of the products containing it, 121 list it before the 1% line and 195 after it (usually 1% or less).
Products using this ingredient
12 of 311 confirmed · likeliest to carry enough first · See all 311
SidmoolMin Jung Gi KGF Nail Nutrition Ampoule30% stated
OGENEXSuper Keratin Repair Clinic1.1% stated
MOREMO KeratinMoremo Keratin Low-Damage Hair Color Gray Coverage & Fashion Color 2 Types0.15% stated
MOREMO KeratinLow-Damage Hair Color Matte Deep Brown0.15% stated
MOREMO KeratinLow-Damage Hair Color Ash Gray0.15% stated
Milk BaobabPerfume Shampoo White Musk0.04% stated
Milk BaobabPerfume Shampoo White Soap0.04% stated
Milk BaobabPerfume Shampoo White Soap 500ml0.04% stated
Milk BaobabPerfume Treatment Baby Powder0.04% stated
JSOOPJSOOP Silk Keratin Water Pack 2X0.0018% stated
ElastineAmino Peptide Weak Acid Protein High Nutrition Shampoo Pear & Freesia Scent0.001% stated
JSOOPJSOOP Silk Keratin Shampoo 2X0.0005% stated
Definition
Keratins, hydrolyzates. A biological material consisting predominantly of partially hydrolyzed keratin
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
Other restriction: ban substances that deplete the ozone layer
Source: EU CosIng ingredient list
Reviewed by CIR: Safety Assessment of Keratin and Keratin-Derived Ingredients as Used in Cosmetics
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name 加水分解ケラチン: 本品は、ケラチンを酸、酵素又は他の方法により加水分解して得られるものである。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 69430-36-0
- EC No.EU chemical inventory number
- 274-001-1
- DTXSIDUS EPA chemical ID
- DTXSID40894581
Measured properties
- Appearance
- solid
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: KOSHA safety data sheets (Korea)
What products actually use it for
What the 54 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Softener and conditioner43
- Humectant3
- Processing aids not otherwise specified2
- Film former2
- Binder2
- Anti-static agent2
Source: US EPA CompTox dashboard
Related literature
- Interaction of polypeptides with hair in different reducing environments. · 2026
- Hydrolyzed Keratin Peptide Enhances Hair Condition and Promotes Hair Regeneration. · 2026
- Exploring the Functional Properties of Hydrolyzed Keratin: Filling the Knowledge Gap on Surface Active, Emulsifying, and Thickening Properties · 2025
- Keratin Additive for Cellular Adhesion in Transcutaneous Prosthetics · 2025
- “All-in-one” hydrolyzed keratin protein-modified polyacrylamide composite hydrogel transducer · 2020
Linked databases 12
- Australian Industrial Chemicals Inventory (AICIS)
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- Tlooto literature search 2 3 4 5
- US Cosmetic Ingredient Review (CIR) 2
- US EPA CompTox dashboard
- US EPA DSSTox chemical database