Description

Ethyl Ester Of Hydrolyzed Silk is a specialized cosmetic and personal care ingredient derived from the controlled hydrolysis and esterification of silk protein. This compound matters for its unique ability to deliver silk-derived amino acids and peptides in a lipid-soluble, skin-compatible form, enhancing product performance. It is primarily needed by formulators in the high-end skincare, haircare, and cosmeceutical industries seeking to impart superior conditioning, film-forming, and moisturizing properties.

Application

• Premium Skincare Formulations: Used in anti-aging serums, moisturizers, and eye creams for its film-forming and skin-smoothing benefits.
• Advanced Hair Care Products: Incorporated into conditioners, masks, and leave-in treatments to improve hair shine, manageability, and strength.
• Color Cosmetics: Enhances the texture, wear, and skin-feel of foundations, lipsticks, and makeup primers.
• Personal Care Washes: Added to body washes, facial cleansers, and shaving products for mild conditioning and a luxurious after-feel.
• Pharmaceutical Topicals: Potential use as a functional excipient in dermatological creams and ointments for its film-forming properties.

Basic Information

Product Name	Ethyl Ester Of Hydrolyzed Silk
CAS No.	169590-80-1
Molecular Formula	Typically a complex mixture; Contact for details
Molecular Weight	Variable; Contact for details
Synonyms	Silk Ethyl Ester; Hydrolyzed Silk Ethyl Ester; Ethyl Ester Hydrolyzed Silk; Silk Amino Acid Ethyl Ester; Silk Peptide Ethyl Ester; Silk Protein Ethyl Ester; CAS 169590-80-1
EINECS	Contact for details

Quality Control

Our Ethyl Ester Of Hydrolyzed Silk is produced and tested under a strict quality management system. Each batch is analyzed to ensure consistent composition, performance, and safety for cosmetic use. Certificates of Analysis (COA) documenting key parameters are available upon request to support your regulatory and formulation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent moisture absorption and clumping.

Specification

Item	Specification
Appearance	Yellowish to light brown viscous liquid or paste
Identification (IR)	Conforms to standard
Solubility	Soluble in ethanol, propylene glycol; Dispersible in oils
pH (in solution)	5.0 - 7.0
Heavy Metals (as Pb)	< 10 ppm
Microbiological Count	< 1000 CFU/g

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