Factory Supply Natural Sericin Powder
Do You Know Sericin?
Sericin is a natural water-soluble globulin extracted from silkworm cocoons, accounting for approximately 20%–30% of the total weight of silk. Secreted by the silkworm's silk glands, it surrounds fibroin, binding fibers, forming the cocoon shell, and protecting the internal structure. This protein is mainly composed of 18 amino acids, including the eight essential amino acids required by the human body, with high levels of serine, glycine, tyrosine, and alanine. Its molecular structure is predominantly random coiled, containing a β-sheet conformation but lacking an α-helix structure. Rich in polar amino acids such as arginine and lysine, sericin exhibits excellent water solubility, dissolving in hot water and acidic/alkaline solutions. Sericin demonstrates superior biocompatibility, biodegradability, and antioxidant activity. With continuous improvements in extraction technology, sericin is now being produced and applied on a large scale in the food, pharmaceutical, and cosmetic industries.
Why Choose YTBIO's Sericin Powder?
We own our factory and have over 12 years of experience in natural silk-derived cosmetic and functional raw material production. Our Sericin Powder is manufactured under strict quality control, with test results confirming it fully meets specifications:
Premium Quality & Purity: Total Nitrogen ≥14.0% (tested at 14.09%), with polar lateral amino acids accounting for >70% of total amino acids (tested at 71.8%), ensuring excellent moisturizing, anti-aging and skin-repair properties for cosmetic applications.
Stable Physical Properties: Low moisture (Loss on Drying: 3.55%) and ash (2.1%), pH 6.1 within the 5.0-7.0 range, ideal for various formulations without affecting product stability.
Strict Safety & Compliance: Heavy metals (as Pb) <5.0ppm, Arsenic <0.1ppm, and microbial levels far below standards: Total Plate Count <100cfu/g, Mold & Yeast <50cfu/g, with E.Coli, Coliform and Salmonella confirmed Negative, meeting the highest cosmetic-grade safety requirements.
Comprehensive Certifications: Our production system is certified by cGMP, FSSC22000, BRC, HACCP, HALAL, KOSHER, ISO9001, and ISO22000.
Flexible Supply & Customization: Available in 25kg/drum packaging (inner double plastic bag).
YTBIO: Providing High-Quality Pure Sericin and Services
What are the functions of sericin?
1. Skin Moisturizing and Repair
sericin is rich in hydrophilic amino acids such as serine and aspartic acid. Its composition is highly similar to the body's natural moisturizing factors, giving it excellent moisture absorption and retention capabilities. It can increase skin hydration and enhance elasticity, thus being widely used as a moisturizing ingredient and skin barrier repair agent in cosmetics.
2. Antioxidant and Anti-aging
This protein has a significant free radical scavenging ability, inhibiting lipid peroxidation and slowing down skin aging caused by oxidative stress. Simultaneously, sericin can inhibit tyrosinase activity, helping to reduce melanin production and providing a comprehensive skincare effect of brightening skin tone and delaying aging.
3. Wound Healing and Tissue Regeneration
In medical applications, sericin can promote fibroblast proliferation and collagen synthesis, accelerating wound closure and epithelial regeneration, making it particularly suitable for repairing infected wounds. Its good biocompatibility helps reduce inflammation and supports cell adhesion and tissue reconstruction, therefore it is used in functional wound dressings.
4. Antibacterial and Anti-inflammatory Properties
Studies show that sericin possesses broad-spectrum antibacterial and anti-inflammatory capabilities, reducing the risk of wound infection and alleviating inflammatory responses, providing auxiliary protection for skin care and medical repair.
5. Biomaterials and Drug Delivery
Due to its excellent biocompatibility and biodegradability, sericin is often used as a tissue engineering scaffold material, supporting the directed differentiation of stem cells and the regeneration of various tissues such as bone and cartilage. Furthermore, through modification or encapsulation, sericin can also serve as a drug carrier, achieving targeted delivery and controlled release, thus enhancing the therapeutic effect.
Sericin: Multidimensional Applications
As a rich and high-performance natural biopolymer, sericin's applications have expanded from traditional textiles to cutting-edge fields such as modern beauty, medicine, food, and new materials.
Functional Foods and Nutritional Supplements
Natural Antioxidant: Effectively inhibits the oxidative rancidity of oils and the activity of polyphenol oxidase, extending the shelf life of fat-containing foods (especially dairy products and edible oils), providing a safe and natural preservative solution.
Nutritional Enhancer: Rich in various amino acids, it has been found to promote the absorption of trace elements such as zinc, iron, and calcium, possessing the potential to be developed into nutritional supplements or functional health foods.
Texture Modifier: Can act as a natural emulsifier and stabilizer, improving the taste and physical stability of beverages, dairy products, and other foods.
Cosmetics and Personal Care
Highly Effective Moisturizing and Anti-aging: Its amino acid composition is highly similar to the body's natural moisturizing factor, exhibiting excellent hygroscopicity and forming a moisturizing film on the skin surface for long-lasting hydration. Simultaneously, its powerful antioxidant capacity effectively scavenge free radicals, delaying photoaging of the skin.
Skin Whitening and Texture Improvement: By inhibiting tyrosinase activity, sericin reduces melanin production at its source, achieving a brighter complexion and fading dark spots. It also promotes collagen synthesis, enhances skin elasticity, and reduces wrinkles.
Hair Repair: Forming a protective film on the hair surface, it significantly enhances hair shine, elasticity, and tensile strength, repairing damage caused by sun exposure or chemical treatments.
Biomedicine
Wound Repair and Tissue Engineering: It can be formulated into hydrogels, dressings, or scaffolds, significantly accelerating skin wound healing, promoting the regeneration of hair follicles, blood vessels, and other appendages, and effectively inhibiting inflammation and reducing scarring. In bone tissue engineering, it can guide hydroxyapatite deposition, promote osteogenic differentiation, and repair bone defects; in the field of nerve repair, sericin-based conduits can provide support for Schwann cells and guide peripheral nerve regeneration.
Intelligent Drug Delivery Systems: As a carrier, sericin can load small molecule drugs, nucleic acids (such as siRNA), or functional proteins through physical encapsulation or chemical bonding, achieving targeted drug delivery and controlled release, thereby improving efficacy and reducing side effects. Textiles and Advanced Materials
Serene offers new green options for materials science:
Functional textile finishing: By fixing sericin onto synthetic fabrics through finishing processes, textiles with multiple functions such as long-lasting moisturizing, antibacterial, and UV protection can be developed, effectively improving the wearing comfort of synthetic fabrics.
Flexible electronics and energy storage devices: Utilizing its film-forming properties and biocompatibility, sericin is used to develop emerging devices such as wearable electronic devices, implantable biosensors, and supercapacitors, demonstrating its potential in the field of green electronics.
Other fields
Green and environmentally friendly materials: Utilizing its fully biodegradable properties, sericin is used to develop eco-friendly disposable tableware, packaging materials, and agricultural films to reduce "white pollution."
3D bioprinting: As a basic component of bio-inks, sericin is used to accurately construct complex artificial tissue and organ models, supporting regenerative medicine and drug screening.
Environmental remediation: Its excellent adsorption properties make it promising for wastewater treatment, especially for the adsorption of heavy metal ions.
FAQ
Q:What is it?
Natural water-soluble protein extracted from silkworm cocoons, rich in various amino acids.
Q:Main benefits
Moisturizes skin, soothes irritation, resists oxidation, improves skin & hair condition.
Q:Solubility
Easily dissolves in warm water, insoluble in oil.
Q:Usage ratio (cosmetics)
0.5% - 5%.
Q:Safety
Mild & hypoallergenic; patch test recommended for sensitive skin.
Q:Storage & shelf life
Seal, keep cool, dry and dark. Shelf life: 24 months.
Q:Appearance
White/off-white fine powder with slight silk scent.
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