Silk Protein Powder

Silk Protein Powder – Premium Bioactive Ingredient for Cosmetic and Industrial Applications

Xi'an Le-Nutra Ingredients Inc is a manufacturer of high purity Silk Protein Powder from Bombyx mori silkworm cocoon using sophisticated enzymatic hydrolysis technology. Our product is more than 90% protein and can be used as a biocompatible replacement for synthetic polymers in the cosmetic and functional textile industries. We have a GMP certified production plant of 60,000㎡ with an annual capacity of 3,000 tonnes. We ensure stable batch quality with molecular weight control of 300 to 5,000 Daltons. Our manufacturing process provides nitrogen content ≥14.5%, water solubility >99%, and strict compliance with ISO, Halal and Kosher certifications to meet worldwide market standards.

What Makes Silk Protein Powder a Superior Bioactive Ingredient?

The product tackles key formulation challenges in today's cosmetic science. Traditional humectants lose their ability to hold moisture when humidity levels are low, whereas synthetic surfactants can cause skin sensitivity.

Our hydrolysed silk protein has a unique amino acid profile with glycine, alanine and serine representing over 80% of the protein. This naturally occurring substance has been shown to have 30% higher moisture absorption-desorption rates than glycerin in controlled humidity experiments.

Enzymatic hydrolysis breaks down silk fibroin into precise molecular weights that enable deep skin penetration. Unlike petroleum based polymers, this bioactive powder has its optimal formulation stability in the pH range of 5.0–7.0. Its film forming property gives a protective shield against the environmental toxins and gives a non-greasy, silky feel.

Technical Specifications and Quality Parameters

Core Functional Benefits for Formulation Excellence

Deep Hydration and Water Retention

Skin penetration of small-molecule peptide structure is effective. Clinical observations demonstrate persistent hydration performance, outperforming traditional moisturisers in low-humidity conditions.

Skin Barrier Repair and Protection

The film-forming characteristics produce a breathable protective barrier against particle matter. This mechanism allows the controlled release of complementary active substances and protection against environmental stresses PM2.5.

Anti Ageing and Firming Properties

The bioactive peptides activate natural pathways of the collagen synthesis. Use in premium formulations results in obvious increase in skin suppleness and elimination of fine wrinkles.

Lightening and Toning

UV protection to balance out the skin tone with antioxidant amino acids. This natural solution for hyperpigmentation doesn't use harsh chemical bleaching agents.​​​​​​​

Diverse Industrial and Cosmetic Applications

Luxury Skin Care Formulas

The silk protein powder is a luxury anti-aging ingredient for premium emulsions and serums. It is compatible with different actives and so is perfect for complicated formulations addressing the issues of mature skin.

Professional Hair Care System

Low molecular weight peptides penetrate damaged hair shafts, helping restore tensile strength. Low molecular weight fractions coat the cuticle for thermal protection in styling operations. Repair and protection are both advantageous in salon treatments.

Functional Coatings and Bio-Textiles

Our powder is used as a finishing ingredient for synthetic fibres, giving silk-like breathability and hygroscopicity. Performance garment makers employ this technology to combine the durability of synthetics with the comfort features of natural fibres.

Personal Care Products - Advanced

Hydrolysed silk protein is a flexible ingredient that improves product performance in a range of products from facial masks to body lotions. It’s natural origin fits with clean beauty trends while providing tangible results.

Manufacturing Excellence and Quality Assurance

Experience 14+ years of natural ingredient extraction and consistent batch quality. The 60,000㎡ production base adheres to strict GMP and ISO 9001 standards, with rigorous quality control methods.

All production batches are subjected to a full range of tests including protein content analysis, molecular weight determination, heavy metal testing, and microbiological testing. Full documentation including MSDS, TDS and COA is provided with each shipment.

Biological enzymatic hydrolysis technology can protect the bioavailability of silk protein, and realise the accurate distribution of molecular weight. This controlled technique provides a better penetration of the skin than the chemical hydrolysis processes.

Flexible Supply and Customization Services

We provide full OEM/ODM services for brands wanting to use their own specs. Our R&D team works directly with clients to engineer custom formulas, modify purity levels and offer private label solutions.

Annual manufacturing capacity 3000 tonnes, with six versatile production lines. We can fulfilll big requests and unique projects. Safety stock over 30 days assures assured supply continuity with 98% on-time delivery performance.

Global logistics alliances offer multiple shipment choices including EXW, FOB, CFR, CIF, DAP and DDP terms. We ship quickly by air, sea and express to consumers all around North America, Europe and Southeast Asia.

Packaging and Global Delivery

Standard packing is 25 kg fibre drums with double layer food grade polyethylene bags for product integrity throughout international transit. Special packaging solutions are provided for special market requirements.

Our wide range of certifications including Halal, Kosher, Non-GMO, ISO, GMP paperwork etc. helps to comply with regulations in different global markets. If requested, third-party testing services validate batch specifications.

FAQ

Q: What is the difference between Silk Fibroin and Hydrolysed Silk Protein?

A: Silk Fibroin is the major structural protein with higher molecular weight, mainly provides the film formation and basic moisturising activity. Hydrolysed Silk Protein is broken down enzymatically to small molecule peptides that penetrate the skin better and provide better moisturization, healing and anti-aging. It is more bioavailable hence the hydrolysed version is now the standard in the marketplace.

Q: How does this powder function in high electrolyte formulations?

A: Our product is very stable in the presence of salts and it doesn't have the precipitation issues of many synthetic thickeners. This compatibility enables formulators to formulate complicated systems without compromising product integrity or sensory features.

Q: Is cold-process manufacturing compatible with your product?

A: Yes, of course. The high solubility profile allows easy inclusion at room temperature without the need to apply heat. This protects bioactivity and simplifies production procedures, while reducing manufacturers' energy expenditures.

Q: Does high concentration usage cause tackiness?

A: Our silk protein is a dry, silky substance that is not sticky at usage levels beyond 2%, unlike collagen-derived compounds. The particular amino acid structure precludes the sticky residue common to other protein-based additions.

Q: What are the storage conditions for best quality?

A: Store in closed containers in cool and dry places, away from light and high temperatures. Under those conditions the substance retains full efficacy for 24 months. If original package is opened for more than three months, we recommend retesting moisture content.

Partner With a Trusted Silk Protein Manufacturer

Ready to enhance your formulations with premium Silk Protein Powder? Contact our technical team at enquiry@lenutra.com for samples, specifications, and customized solutions tailored to your specific application requirements.