Peptide Quality Guarantee | 100% Reship & 90% Refund
We guarantees top-quality GMP peptides with 100% reship for damage/loss and 90% refund on returns. Maximum safety & secure global shipping. Shop with confidence.
Our Uncompromising Guarantee – Quality, Safety & Satisfaction
we don’t just sell peptides – we stand behind every single product we manufacture. Since 2003, we’ve built our reputation on quality, transparency, and customer satisfaction. We understand that your research depends on reliable, high-purity peptides, and we’re committed to delivering nothing less.
That’s why we offer a comprehensive guarantee that protects your investment and gives you complete confidence when you choose Chengdu Kaijie as your peptide supply partner.
Our Promise: Top-quality products, maximum safety, fast secure shipping, and a guarantee that has your back.
Summary of Our Guarantees
| Guarantee | What We Promise |
|---|---|
| Quality | ≥98% purity, GMP-certified, Finnrick verified, COA included |
| Safety | Sterile manufacturing, professional handling, secure packaging |
| Shipping | Fast processing, trusted carriers, temperature control, real-time tracking |
| Reship | 100% free reshipment for damaged or lost orders |
| Refund | 90% refund on eligible returns within 14 days |
| Company | 20+ years of ethical, transparent, customer-focused service |
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What Our Guarantee Covers
We Guarantee:
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Product purity meets or exceeds ≥98% (HPLC verified)
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Product matches the description and specifications ordered
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Product is manufactured in GMP-certified facilities
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Product arrives undamaged and professionally packaged
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COA and documentation are provided with every order
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Your order ships within the stated processing time
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Your tracking information is provided promptly
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We respond to your inquiries within 24 hours
What We Cannot Guarantee:
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Research outcomes or results (peptides are research tools, not therapies)
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Individual responses in research models (biology varies)
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Shipping delays caused by customs, weather, or carrier issues
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Improper storage or handling after delivery
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Use of products outside their intended research applications
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Our Core Guarantees
1. Premium Quality Guarantee
Every peptide we manufacture meets the highest standards of quality and purity.
What This Means For You:
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GMP-Certified Production – All peptides manufactured under strict Good Manufacturing Practice standards
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≥98% Purity Guaranteed – Verified through rigorous HPLC and mass spectrometry testing
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Finnrick Verified – Independent third-party verification for complete transparency
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Certificate of Analysis (COA) – Comprehensive documentation with every shipment
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Strict Quality Control – Multi-level inspection from raw material to finished product
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Pharmaceutical-Grade Standards – Meeting USP, EP, or CP requirements
Our Commitment: If a product fails to meet our stated purity specifications, we will replace it immediately or issue a full refund.
2. Maximum Safety Guarantee
Your safety and the integrity of your research materials are our top priorities.
What This Means For You:
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Sterile Manufacturing – Products produced in controlled, sterile environments
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Aseptic Processing – Minimizing contamination risks at every stage
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Professional Packaging – Sealed vials, desiccants, and protective materials
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Secure Handling – Every package handled with care and professionalism
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Discreet Shipping – Professional packaging with no external product labels
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Clear Labeling – Accurate product identification and handling instructions
Our Commitment: Every peptide you receive has been handled with the utmost care and professionalism from our facility to your laboratory.
3. Fast & Secure Shipping Guarantee
We deliver your peptides quickly and securely, anywhere in the world.
What This Means For You:
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Global Reach – Shipping to 69 countries worldwide
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Trusted Carriers – DHL, FedEx, UPS, and EMS partnerships
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Real-Time Tracking – Monitor your shipment every step of the way
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Temperature-Controlled Packaging – Ice packs and thermal insulation
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Expedited Processing – Orders shipped within 1-2 business days
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Customs Support – Complete documentation for smooth clearance
Our Commitment: Your order will be professionally packaged, shipped via a trusted carrier, and tracked until it arrives safely at your laboratory.
4. 100% Reship Guarantee – Damage or Loss
If your peptide order is damaged during transit or lost in shipping, we’ve got you covered.
What This Means For You:
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100% Free Reshipment – We replace damaged or lost orders at no cost to you
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No Questions Asked – Simple, hassle-free process
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Fast Replacement – We expedite reshipment to minimize research delays
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Original Packaging – New order shipped with the same care as the first
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Priority Handling – Reship orders receive priority processing
Our Commitment: If your package arrives damaged or doesn’t arrive at all, we will reship your entire order – 100% free of charge. No hidden fees, no complicated claims, no runaround.
5. 90% Refund Guarantee – Returns
If you’re not completely satisfied with your peptide purchase, we offer a generous 90% refund on eligible returns.
What This Means For You:
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90% Refund – We refund 90% of your product purchase price (restocking fee applies)
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14-Day Window – Contact us within 14 days of receiving your order
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Simple Process – Easy returns with our RMA system
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Fast Processing – Refunds issued within 5-10 business days of return receipt
Eligibility Requirements:
| Condition | Eligible for 90% Refund |
|---|---|
| Unopened, sealed product | Yes |
| Product quality issue | Yes (100% refund) |
| Incorrect product shipped | Yes (100% refund) |
| Damaged in transit | Yes (100% reship or refund) |
| Opened/reconstituted product | No |
| Improperly stored product | No |
| Changed mind after opening | No |
Important Notes:
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Return shipping costs are the customer’s responsibility unless the error was ours
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Products must be returned in their original packaging
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Custom synthesis orders are non-refundable once production begins
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The 10% restocking fee covers handling, testing, and administrative costs
6. Company Guarantee
As a company, we guarantee our commitment to excellence in every aspect of our business.
What This Means For You:
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20+ Years of Experience – Founded in 2003 by veteran peptide chemists
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Financial Stability – Established, reliable company with global reach
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Regulatory Compliance – GMP-certified, US FDA preparatory work underway
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Continuous Improvement – Ongoing investment in facilities and technology
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Ethical Business Practices – Transparency, honesty, and integrity
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Customer-Centric Approach – Your satisfaction is our priority
Our Commitment: We are a legitimate, licensed peptide manufacturer with a proven track record. We’re here for the long term, and we’ll continue to serve the peptide research community with excellence for years to come.

About Us
Prime Research Materials is a leading GMP-certified peptide manufacturer founded in 2003. With 20+ years of expertise, we supply high-purity research peptides and peptide APIs to 1,300+ partners across 69 countries worldwide.
Our Commitment:
✅ GMP-Certified Production
✅ ≥98% Purity Guaranteed
✅ Finnrick Verified
✅ 100% Reship on Damage/Loss
✅ 90% Refund on Returns
Contact Us
Prime Research Materials – Your Trusted Partner for High-Purity Research Peptides Worldwide.
Email: info@primeresearchmaterials.com
Phone: +16363242753