Silk peptide
Bulk Hydrolyzed Silk powder, ≥14.5% total nitrogen, for shampoo, conditioner and skin-care formulas.
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Silk peptides for personal care
Hydrolyzed Silk
INCI name
≥14.5%
Total nitrogen
500–30,000 Da
Molecular weight
Water-soluble white powder
Form
Silk fibroin
Source
4.5–6.5
pH
96690-41-4
CAS number
3504.00
HS code
CAS 96690-41-4 · White powder
Representative product image. See the grade or model specification.
Overview
Protide supplies silk peptide powder from China with total nitrogen of at least 14.5% for personal-care manufacturers. The water-soluble ingredient is identified by the INCI name Hydrolyzed Silk and is offered in bulk.
The material comes from silk fibroin, the structural protein at the core of the silk fiber. It differs from sericin and intact silk fibers. The reported molecular-weight range is 500–30,000 Da; the TDS also lists pH, moisture and microbiological criteria.
Browse related animal protein ingredients and request the specification for your order.
Silk peptide specifications
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Physical & chemical
Total nitrogen
≥14.5%
Loss on drying
≤5%
Residue on ignition
≤4%
pH
4.5-6.5
Molecular weight
500-30,000 Da
Lead (Pb)
≤0.5 mg/kg
Arsenic (As)
≤0.5 mg/kg
Mercury (Hg)
≤0.2 mg/kg
Microbiology
Total bacterial count
≤1,000 CFU/g
Pathogenic bacteria
Not detected
The batch COA prevails.
Applications
Shampoos
Trial water-soluble Hydrolyzed Silk in shampoos. Check dissolution and compatibility with the full surfactant system, using the intended mixing sequence and addition level.
Conditioners and masks
Check silk peptide incorporation, appearance and conditioning performance in the full conditioner or hair-mask formula during the proposed storage period.
Creams and lotions
Use the silk-derived ingredient in cream and lotion development. Review its pH and microbiological specification, then assess compatibility and stability in the final emulsion.
Serums and facial masks
For serums and facial masks, test the selected Hydrolyzed Silk grade for dissolution, appearance and finished feel. Check stability in the complete formula.
Facial and body cleansers
Assess Hydrolyzed Silk in facial or body cleansers where a silk-derived ingredient fits the brief. Check its compatibility with the recipe’s surfactants and processing conditions.
Oral care
For oral-care trials, confirm the grade documents and intended-use requirements for your market. Check compatibility and finished-product suitability in the full formula.
Why source from Protide
Hydrolyzed Silk samples
Request Hydrolyzed Silk for your personal-care trials. Send the formula format, specification and destination for sample arrangements and a matching quotation.
Combined ingredient orders
Combine Silk peptide with other ingredients in one order. We can review specifications, packing and shipping requirements.
Technical and laboratory support
Our technical team can review grade specifications, sample results and processing requirements before your commercial order.
Export & purchasing support
Request the applicable TDS, SDS and batch COA. Confirm packing and delivery requirements for your destination.
Documents
Download the listed TDS and SDS, or request a grade-specific SDS and batch COA.
FAQ
Is silk peptide the same as sericin?
The listed silk peptide is derived from silk fibroin, the structural protein at the core of the fiber. Sericin is the separate protein around that core. Confirm the source identity on the TDS and batch documents so the quoted hydrolyzed ingredient matches the one specified for your personal-care formula.
What does the ≥14.5% figure measure?
The ≥14.5% value is a total-nitrogen limit. It is not a declared protein percentage and should retain its parameter name in a comparison or purchase specification. Review that limit alongside the pH, moisture and microbiological criteria, and request the matching batch COA for acceptance.
Which INCI name and molecular-weight range are listed?
The listed INCI name is Hydrolyzed Silk, with a reported molecular-weight range of 500–30,000 Da. Confirm the grade and test method needed for approval, then trial dissolution, compatibility and formula stability. The name and range do not substantiate a finished-cosmetic efficacy claim.
Which documents are available for silk peptide?
The page lists a silk-peptide TDS and SDS. Request the batch COA, source identity and documents required for your intended cosmetic or other qualified application. Ask whether certificates are available for the quoted grade and production site, and confirm their scope with our team.
What determines the price of bulk silk peptide?
MOQ is 500 kg. Price depends on grade, quantity, packing, destination and Incoterm. Send your volume and destination for a quote within one business day.
Related ingredients
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Request product-specific technical documents.
Email sales@protidebio.com · WhatsApp +86 180 1740 1164