Silk Peptide Powder

Premium Silk Peptide Powder – Cosmetic-Grade Bioactive Protein Solution for Professional Formulations

Xi'an Jiayuan Bio-tech Co., Ltd., established in 2002 with over 20 years of manufacturing expertise, delivers pharmaceutical-grade Silk Peptide Powder engineered for cosmetic and nutraceutical applications. Our product features a nitrogen content of ≥14.5% (Kjeldahl method), with molecular weights optimized between 300–5,000 Daltons to ensure superior dermal penetration and biocompatibility. This product is manufactured on 2 GMP manufacturing lines and is ISO9001, HALAL, KOSHER and HACCP certified. It gives a natural alternative to synthetic polymers. We have 30 committed R&D specialists, RMB 30 million registered capital, scalable manufacturing capacity, factory direct pricing and 24/7 technical assistance to worldwide B2B customers.

What Is Silk Peptide Powder?

It is a bioactive material mostly consists of sericin and fibroin proteins and it is derived from the cocoon of the silkworm Bombyx mori by enzymatic hydrolysis and degumming . Controlled hydrolysis degrades the macromolecular silk proteins into low molecular weight peptides in the range from 300 to 5,000 Daltons.

This molecular weight distribution in particular gives deep penetration into the skin with good film forming characteristics. The powder is highly soluble in water-based solutions and is compatible with a range of formulation methods.

With inherent biocompatibility with human skin proteins, it is a better choice than petroleum-based polymers or synthetic surfactants. The manufacturing procedure retains 18 important amino acids including glycine, alanine, and serine – all of which are required in collagen production and cellular healing.

COA

Product Name	Silk Peptide Powder
Ref standard	According with the enterprise standard
Items	Requirements			Results	Method
Assay	≥98%			98.61%	HPLC
Appearance	Off-white fine powder			Conforms	Organoleptic
Taste	Characteristic			Conforms	Organoleptic
Lead(Pb)	≤1ppm			Conforms	Atomic Absorption
Cadmium(Cd)	≤1ppm			Conforms	Atomic Absorption
Mercury(Hg)	≤0.1ppm			Conforms	Atomic Absorption
Arsenic (As)	≤1ppm			Conforms	Atomic Absorption
Ethanol	≤5000ppm			1118ppm	GC
Total Plate Count	≤5000cfu/g			Conforms	CP2015
Mold &Yeast	≤100 cfu/g			Conforms	CP2015
E. Coli	Negative			Not Detected	CP2015
Salmonella species	Non-detected			Not Detected	CP2015
Staphylococcus aureus	Non-detected			Not Detected	CP2015
Non-GMO, Non-Irradiation, Allergen Free
Storage Condition	Preserve in tight containers at controlled room temperature .
Packing	25kg in drum with double plastic bag inside
Conclusion	The product conforms to the enterprise standard

Functions

Moisture Retention Enhancement

The hygroscopic amino acid structure has a good affinity for water molecules, providing better hydration than traditional humectants such as glycerin. This long-lasting moisture-locking effect lowers transepidermal water loss by up to 40%.

Film-Forming Protection

Forms a breathable, non-occlusive protective film on skin and hair surfaces. This barrier protects against external stimuli while enabling natural sweat to occur, relieving irritation problems sometimes seen with synthetic surfactants.

Boosting Collagen Production

Some amino acid sequences stimulate fibroblast activity and collagen formation. Regular use in 28-day cycles has been shown in clinical tests to improve suppleness of the skin and decrease fine wrinkles.

Anti-Aging Benefits

Powerful antioxidant peptides that prevent free radicals and protect cellular DNA from oxidative damage. Molecular weight allows penetration in to the dermis layer where aging process is start.

Application Fields

Industry Sector	Specific Applications	Functional Benefits
Cosmetics & Skincare	Anti-aging serums, moisturizers, face masks	Deep hydration, wrinkle reduction, barrier repair
Hair Care Products	Shampoos, conditioners, hair treatments	Damage repair, shine enhancement, protein restoration
Medical Skincare	Post-procedure recovery creams, wound healing	Tissue regeneration, inflammation reduction
Nutraceuticals	Collagen supplements, beauty-from-within formulas	Systemic anti-aging, joint health support
Textile Industry	Functional fabric treatments, silk finishing	Fabric softness, moisture management

Certificates

Xi'an Jiayuan Bio-tech maintains comprehensive international certifications:

• ISO9001 Quality Management System – Certified since 2012
• FSSC22000 – Food Safety System Certification
• HALAL & KOSHER – Religious dietary compliance
• HACCP – Hazard Analysis and Critical Control Points
• Shaanxi Province High-tech Enterprise – Recognized in 2013

All certificates for Silk Peptide Powder are regularly audited and updated to maintain compliance with evolving global standards.

Quality Control

Each manufacturing batch undergoes rigorous multi-stage testing to comply with international pharmaceutical standards.

Nitrogen Content Analysis (Kjeldahl Method): Confirms successful hydrolysis and concentration of peptides, ensuring ≥14.5% protein content.

Molecular Weight Distribution (Gel Permeation Chromatography): Confirms proper 300-5,000 Dalton range for bioavailability.

Microbial Testing: Bacterial endotoxins less than 10 EU/mg, total plate count < 1,000 CFU/g.

Heavy Metal Screening: Lead <1.0ppm, Arsenic <0.5ppm, Mercury <0.1ppm, Cadmium <0.5ppm.

Solubility test: 5 min, gentle agitation, room temperature. Soluble in water.

We perform these tests in our ISO-certified laboratories using USP/EP procedures and maintain entire batch documentation for traceability.

Payment & Shipment

Payment Methods: TT, DP, PayPal, Visa, MasterCard, LC, DA, Escrow

Shipping Partners: DHL, FedEx, UPS, TNT, EMS, Ocean Freight Companies, International Airlines

Delivery Time: 3-7 working days for express shipments, 25-35 days for sea freight.

We provide door to door delivery to customers in Europe and the United States without any import experience. Our logistics staff takes care of all customs procedures.

Packaging & Transportation

Standard Packaging: 1 kg/aluminum foil bag; 25 kg/fiber drum with double food grade plastic bags inside.

Branded containers, sachets or bulk industrial packaging Custom Packaging ODM/OEM services

Storage: Store in a cool, dry area below 25°C, out of direct sunlight

Shelf Life 24 months under optimum storage conditions

Transportation Stability: Peptides are packaged in moisture-proof and light-resistant packaging to ensure their integrity throughout travel. Regular delivery times, no extra temperature control needed.

After-sales Service

Our committed technical support staff offers 24/7 help for formulation advice, application difficulties and regulatory documents.

Every purchase is sent with full batch analysis results, safety data sheets and allergies declarations. We provide free samples (MOQ applies for business orders) to check the compatibility before bulk orders.

For our regular customers, we hold inventory in our warehouses to guarantee a continuous supply chain. Our technical advisors are available to help you with dose recommendations and integration techniques for your particular product compositions.

Exhibitions

Xi'an Jiayuan Bio-tech often participates in international industry events to display its new technologies and to meet partners from all around the world. With participation in events such as CPhI Worldwide, in-cosmetics Global and Vitafoods, you will get access to the latest research advancements and application innovations.

Visit our booth and meet our R&D team, examine product samples and discuss bespoke solutions for your production requirements.

Exhibitions

Attending major international trade shows like Food Ingredients China (FIC), Natural Goods Expo, and SupplySide West is something that we do often. At these events, you will have the opportunity to try out our products for yourself.

Why Choose Us?

Direct Factory Advantage: Factory direct pricing with no middleman markup, saving you 20-35% off the trading company's price with direct purchase.

Complete Production Facilities: Vertically integrated facilities from raw material procurement to packaging offer consistent quality and quick turnaround times.

MOQ: Flexible MOQ. We may start with 1kg for testing formulation before bulk purchase. Shipping expenses may be minimized via multi-product consolidation.

20 Years of Expertise: Since 2002 we have perfected our manufacturing procedures and quality standards, servicing more than 200 customers in 30 countries.

Full Documentation: All shipments are accompanied with the necessary COA, MSDS, allergy declarations and regulatory compliance documentation for your market registration.

FAQ

Q: What is the typical molecular weight range of your product?

A: Our product is enzymatically hydrolyzed to molecular weights of 300–5,000 Daltons, ideal for cutaneous absorption while yet keeping film-forming characteristics. Tailored molecular weight distributions for specific applications.

Q: What distinguishes silk peptide from normal amino acid mixtures?

A: Our peptide chains are based on genuine protein sequences of silk fibroin and sericin and hence provide a greater bioactivity in comparison to generic amino acid mixes. The entire peptide linkages give more moisturizing benefits and collagen-stimulating actions than isolated amino acids ever could.

Q: What is the recommended usage concentration in cosmetic formulations?

A: For skincare products, we recommend 2–5% concentration in the aqueous phase. Hair care applications typically use 1–3%. Higher concentrations up to 10% can be utilized in intensive treatment products. Our technical team provides detailed formulation guidance based on your product type.

Q: How do you ensure consistent quality across different production batches?

A: Each batch is tested for nitrogen concentration (Kjeldahl technique), molecular weight (GPC), microbiological content and heavy metals. Our GMP manufacturing lines follow defined procedures with real-time quality checks assuring <3% fluctuation in technical parameters across batches.

Q: Can this powder be used in oral supplement formulations?

A: Yes, our product satisfies food-grade requirements and has HALAL and KOSHER certifications. In capsules or beverage powders, it improves collagen production and joint health at a daily dosage of 500–1,000 mg. But effectiveness relies on optimum formulation with absorption enhancers to provide best bioavailability.

Contact Us

Ready to enhance your formulations with premium Silk Peptide Powder? Our technical team is available to discuss your specific requirements and provide customized solutions.

Email: sales@jayuanbio.com and sales1@jayuanbio.com