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Silk Fibroin Protein CAS 96690-41-4

Molecular Formula: Null

Formula Weight: 0

ZSpharmac: Silk Fibroin Protein Supplier

Product Name: Silk Fibroin Protein
CAS No: 96690-41-4
Purity: 99%

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Basic Info

Product Name:Silk Fibroin Protein
Other Names:Protein Hydrolyzates, Silk
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White Powder
EINECS No.:306-235-8
Provide:Silk Fibroin Protein MSDS;
Silk Fibroin Protein COA

What is Silk Fibroin Protein?

Silk Fibroin Peptide, also known as silk fibroin peptide in Chinese, is a protein fragment extracted from natural silk. It is a product obtained by hydrolyzing large molecules of silk fibroin (Silk Fibroin) into smaller peptide chain fragments through chemical or enzymatic methods. These peptide chains often contain multiple amino acid units with varying molecular weights and biological activities.

Silk Fibroin Protein Property

density 0.622[at 20℃]
Odorat 100.00?%. bland
Water Solubility 462g/L at 30℃


Silk Fibroin Peptide Uses

Moisturizing and repairing: Silk fibroin peptides are rich in hydrophilic amino acids, which can form a breathable moisturizing film, effectively lock in skin moisture, reduce transepidermal water loss (TEWL), and enhance skin hydration and softness. In addition, it can promote the self-repair of skin cells, reduce fine lines, and improve skin elasticity and luster.

Anti-aging: By promoting collagen synthesis and antioxidant effects, silk fibroin peptides help resist free radical damage, slow down the skin aging process, reduce wrinkles, and maintain the youthfulness of the skin.

Mildness and safety: Silk fibroin peptides are derived from nature, have good biocompatibility, and are hypoallergenic. They are suitable for various skin types, including sensitive skin, and have become an ideal ingredient in high-end skin care products.

Tissue engineering: The biocompatibility and degradability of silk fibroin peptides make it an ideal material for tissue engineering and regenerative medicine. It can be used to manufacture repair and replacement materials for skin, bone, cartilage and other tissues.

Drug delivery system: Silk fibroin peptides can be used as drug carriers, and their structures can be designed to control or target the release of drugs to improve the effectiveness and safety of drugs.

Wound healing: Wound dressings made of silk fibroin peptides can promote cell proliferation and migration, accelerate the wound healing process, and have good antibacterial properties to reduce the risk of infection.

Functional textiles: By combining silk fibroin peptides with other fiber materials, advanced textiles with antibacterial, moisturizing, and UV protection functions can be developed, such as underwear, sports equipment, etc.

High-performance fiber: Silk fibroin peptide fiber has high strength, high elasticity, good moisture absorption and breathability, and can be used to produce fiber materials with special requirements, such as biomedical implants, protective equipment, etc.

Dietary supplement: Silk fibroin peptides contain a variety of amino acids and can be used as nutritional supplements to promote human health and enhance immunity.

Functional foods: Silk fibroin peptides are added to some functional foods to use their biological activity to improve digestion and absorption and promote physical health.

Silk Fibroin Peptide outstanding Applications in Cosmetics

1. Efficient moisturizing performance
Silk fibroin peptides contain a large number of hydrophilic groups (such as hydroxyl groups, carboxyl groups, amino groups, etc.). These groups can combine with water molecules to form a thin layer of moisturizing barrier on the skin surface, effectively locking in moisture and preventing moisture from evaporating. Achieve long-lasting moisturizing effect. This natural moisturizing mechanism is essential for maintaining the skin’s water-oil balance.

2. Promote skin repair and regeneration
Silk fibroin peptides are rich in a variety of amino acids, including essential amino acids. They can penetrate deep into the skin, promote cell metabolism, accelerate the repair process of damaged skin, stimulate the synthesis of collagen and elastin, and help maintain the elasticity and tightness of the skin. Reduces the appearance of fine lines and wrinkles.

3. Inhibit melanin production and whitening effect
Silk fibroin peptide can inhibit the activity of tyrosinase, which is a key enzyme for melanin synthesis. By reducing melanin production, silk peptides help fade dark spots and even skin tone, keeping skin bright and flawless.

4. Antioxidant and anti-aging
Silk fibroin peptides have certain antioxidant capabilities, which can help remove free radicals in the skin and reduce the damage caused by oxidative stress to the skin, thereby delaying the aging process of the skin and protecting the skin from environmental factors (such as ultraviolet rays and pollution). .

5. Enhance formula compatibility and stability
Chemically, silk fibroin peptides are water-soluble small molecule peptides that are easy to mix with other cosmetic raw materials and will not affect the overall stability and texture of cosmetics. At the same time, they can also increase the moisture and smoothness of the product.

Contact Us

As a company specializing in the production and supply of Silk Fibroin Peptide raw materials, we are committed to providing customers with high-quality products and preferential prices. We have rich experience and technology to ensure product quality and stable supply. No matter where you are, we can provide you with the Silk Fibroin Peptide raw materials you need to support your production and research and development.

We always adhere to the principle of honest operation, strictly control product quality, and serve every customer with a customer-first attitude. Over the years, we have established good cooperative relationships with customers at home and abroad and won their trust and praise.

If you have needs or are interested in our products, please contact our service staff directly, we will wholeheartedly provide you with the best quality services and products. Looking forward to cooperating with you and developing together!

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

Get Silk Fibroin Protein Quotation