Research Product
Factory-Direct Research Peptides for Reliable Global Supply
Custom and bulk research peptides with ≥99% research-grade purity, HPLC verification and batch COA — plus custom synthesis, OEM/private label and worldwide fulfillment.
≥99% Purity
HPLC Verified
Batch COA
Factory Direct
Global Shipping
24/7 Support
FEATURED PRODUCTS
Popular Research Products
A selection of frequently requested products. Contact us for current specifications, quantity options, COA information and lead time.
Research Product
Research Product
Research Product
Research Product
Research Product
Research Product
Custom Synthesis
Custom Peptides
Made-to-order peptide synthesis to your specific sequence, quantity and specification.
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Bulk Supply
Peptide Raw Materials
Bulk peptide raw materials with factory-direct supply and volume sourcing support.
Request detailsPEPTIDE SUPPLY SOLUTIONS
Flexible Supply for Research, Bulk & Private-Label Projects
Research Peptides
HPLC-verified supply for laboratory and research applications with batch COA documentation.
Cosmetic Peptides
Peptide options for cosmetic and formulation research with specification support.
Custom Synthesis
Made-to-order peptide sourcing for specific sequence or specification requirements.
Bulk Raw Materials
Factory-direct volume supply for larger quantity requirements.
OEM / Private Label
Branding and packaging support for distributors and sourcing partners.
Lyophilized Vials
Flexible vial formats for repeatable research-product sourcing.
SUPPLY CAPABILITIES
Peptide Supply Capabilities Built for B2B Buyers
Four core capabilities covering sourcing, analytical verification, documentation and international fulfillment.
01
Custom & Bulk Supply
Research, cosmetic and custom peptide supply for different sourcing requirements.
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02
HPLC & MS Verification
Analytical testing supports consistent research-grade specifications before release.
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03
COA & Documentation
Batch-specific COA documentation provides clear purity and quality information.
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04
Global Fulfillment
International dispatch and tracking support for buyers across multiple regions.
Ask about thisABOUT RUIZHENG
Reliable Peptide Sourcing, Direct from the Factory
QIANMIAO PEPTIDES supports laboratories, distributors and formulation partners with research peptides, cosmetic peptides, custom synthesis, bulk raw materials, lyophilized vials and OEM/private-label sourcing.
Our focus is straightforward: clear specifications, batch documentation, analytical verification and responsive communication throughout the sourcing process.
View Supply Solutions20+Years Experience
100+Peptide Products
35+Countries & Regions
≥99%Research-Grade Purity
QUALITY CONTROL
Quality You Can Verify
Research-grade supply is supported by analytical testing and batch documentation, giving buyers clearer visibility into purity, identity and consistency before repeat orders.
01
HPLC Verification
Purity data supports batch review against research-grade specifications.
02
Mass Spectrometry
Analytical identity support helps confirm product characteristics before release.
03
Batch COA
Each batch is supported by documentation for specification and quality review.
04
≥99% Purity Options
Research-grade purity targets are available across supported peptide requirements.
Need documentation before ordering?
Review sample certificates before discussing your requirement.
View COA Examples
QUALITY & DOCUMENTATION
Batch COA & Analytical Quality Documentation
Typical research-grade purity is ≥99%, supported by HPLC and mass-spectrometry analysis before release.
A detailed Certificate of Analysis is supplied for each batch so purity and quality data can be reviewed and independently verified when required.
CUSTOM SYNTHESIS & OEM
A Clear Process from Requirement to Delivery
Custom synthesis, bulk supply and private-label projects start with your specification and move through production, quality review and final packaging.
01
REQUIREMENTS
Define Your Project
Share the target product or sequence, purity, quantity, packaging format and expected lead time.
- Product / sequence
- Purity target
- Quantity & packaging
02
PRODUCTION
Production & Testing
Sourcing or synthesis is followed by analytical quality control and batch documentation.
- Synthesis / sourcing
- HPLC & MS testing
- Batch COA
03
FULFILLMENT
Packaging & Delivery
Choose bulk, vial or private-label presentation followed by international shipment support.
- Bulk or vial format
- Private-label options
- Global shipment support
WORLDWIDE SUPPLY
Global Peptide Supply Across 35+ Countries & Regions
Multiple warehouse options support more efficient international dispatch. Shipments can include tracking through carriers such as DHL, FedEx and EMS, depending on destination and order requirements.
20+Years of Experience
100+Peptide Products
35+Countries & Regions
≥99%Research-Grade Purity
RESPONSIVE SUPPORT
Support from Inquiry Through Delivery
Clear communication at each stage helps reduce back-and-forth and keeps sourcing requirements, documentation and delivery expectations aligned.
Specification & Quote
Discuss product, quantity, purity, COA information, packaging and target lead time before confirming an order.
Progress & Documentation
Receive communication on production or sourcing progress, quality documentation and shipment preparation.
Tracking & Reordering
Get shipment tracking support and continue the same communication channel for repeat orders or new requirements.
24/7 inquiry support via WhatsApp and email.
WhatsApp +852 55950356 →
FREQUENTLY ASKED QUESTIONS
Common Questions About Peptide Supply
Quick answers about product range, quality documentation, custom projects and international delivery.
Our supply range includes research peptides, cosmetic peptides, custom synthesis, bulk raw materials, lyophilized vial formats and OEM/private-label support.
Research-grade purity options are typically ≥99%, with batch-specific analytical documentation available for quality review.
Yes. A detailed COA is supplied for each batch, supported by analytical quality-control data such as HPLC and mass-spectrometry testing.
Yes. Send your target product or sequence, purity, quantity, packaging requirements and lead-time expectations so the project can be reviewed.
In-stock orders are typically dispatched within 1–3 business days. Custom synthesis usually requires around 2–4 weeks depending on complexity, with transit time varying by destination.
Yes. International supply is supported across 35+ countries and regions, with tracking and carrier options selected according to the order and destination.
“
The COAs matched our independent HPLC checks every time. The consistency made our sourcing much easier to plan.
RO
Dr. R. OkaforResearch Lab · Procurement
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Send the product and your key requirements. We reply with pricing, COA information and lead time.
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