Description

Keratin CAS NO 169799-44-4 is a fibrous structural protein that forms the key component of hair, nails, feathers, horns, and the outer layer of skin. Its unique amino acid composition, rich in cysteine which forms disulfide bonds, provides exceptional strength, resilience, and protective properties. This makes it a highly sought-after ingredient for manufacturers in the cosmetics, personal care, nutraceutical, and biomedical industries seeking to enhance product performance with natural, bio-compatible materials.

Application

• Hair Care Formulations: As a key active in shampoos, conditioners, and hair masks to repair damage, reduce breakage, and improve elasticity and shine.
• Skin Care Products: Incorporated into creams, lotions, and serums for its moisturizing and film-forming properties, helping to improve skin barrier function and smoothness.
• Nail Strengtheners: Used in nail polish and treatment products to fortify nails, prevent splitting, and promote healthy growth.
• Cosmetic & Beauty Tools: A component in the manufacture of high-quality brushes (makeup, shaving) where controlled keratin fibers are used.
• Nutraceuticals & Dietary Supplements: Hydrolyzed keratin is used in supplements aimed at supporting healthy hair, skin, and nail growth from within.
• Biomedical Research & Scaffolding: Utilized in tissue engineering and wound dressing research due to its biocompatibility and structural properties.
• Animal Feed & Pet Care: Added to premium pet food and supplements to support coat health and quality in animals.

Basic Information

Product Name	Keratin
CAS No.	169799-44-4
Molecular Formula	Variable (Protein)
Molecular Weight	Variable (5.5 - 60 kDa typical)
Synonyms	Keratin Protein; Fibrous Keratin; α-Keratin; β-Keratin; Cytokeratin; Hair Keratin; Wool Keratin; Feather Keratin; Scleroprotein; Hydrolyzed Keratin; Keratin Peptides
EINECS	Contact for details

Quality Control

Our Keratin is produced and tested under stringent quality management systems. Each batch is characterized for key parameters including protein content, amino acid profile, molecular weight distribution, and microbiological purity to ensure consistency and performance. Certificates of Analysis (COA) documenting purity, heavy metals, and specific biological activity are available upon request. We can supply grades suitable for cosmetic, nutraceutical, and research applications, with compliance support for relevant frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Ensure the container is kept tightly sealed in a low-humidity environment to prevent caking and maintain stability. For long-term storage, consider desiccants or inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to standard
Protein Content (Kjeldahl)	≥ 90.0 %
Moisture Content (Loss on Drying)	≤ 8.0 %
Ash Content	≤ 5.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Total Plate Count	≤ 1000 CFU/g
Yeast & Mold	≤ 100 CFU/g
E. coli	Negative
Salmonella	Negative

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.