Shipping & Returns Policy – Reliable Peptide Delivery Worldwide

Reliable shipping services and a transparent return process designed to support customer satisfaction.

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Reliable Global Shipping

Chengdu Kaijie Peptides works with reputable shipping carriers to provide dependable delivery services across many international destinations. Shipping availability, delivery times, and service options may vary depending on the destination country and local regulations. We continuously work to ensure a reliable shipping experience for all customers.

Estimated Delivery Timeframes

Estimated shipping times depend on factors such as shipping method, destination country, customs procedures, weather conditions, and local carrier performance.

Order Tracking

When available, tracking information will be provided after your order has been shipped. Customers can use the tracking details to monitor shipment progress and receive updates regarding delivery status.

Worldwide Delivery Options

We are proud to support customers from many regions around the world. International shipping availability may be subject to local laws, customs regulations, import restrictions, and carrier service limitations.

Unexpected Delivery Delays

While most shipments arrive within estimated delivery windows, delays may occasionally occur due to customs inspections, severe weather conditions, transportation disruptions, public holidays, or carrier-related issues.

Returns and Refund Guidelines

Due to the nature of our products, return eligibility may be limited. Customers should contact our support team regarding any concerns with their order. Each request will be reviewed individually to determine whether a return, replacement, or other resolution may be appropriate under our policies.

Customer Information Accuracy

Customers are responsible for providing accurate shipping addresses, contact information, and order details. Incorrect or incomplete information may result in delays, additional shipping charges, or unsuccessful delivery attempts.

Customs and Import Regulations

Customs policies vary by country and may affect shipment processing times or import procedures. Customers are responsible for understanding and complying with any local regulations, taxes, duties, or import requirements that may apply to their orders.

Need Assistance?

If you have questions regarding shipping, returns, tracking information, or order status, our customer support team is available to assist. We are committed to providing professional service and helping customers receive the information they need quickly and efficiently.

Get in touch

At Chengdu Kaijie Biotechnology, we understand that receiving your peptide research materials safely and on time is critical to your work. That’s why we’ve developed a comprehensive shipping and returns policy designed to provide transparency, reliability, and peace of mind. Whether you’re ordering research peptides for your laboratory or bulk peptide APIs for pharmaceutical development, we ensure your products arrive in optimal condition.

Our Shipping Policy

Domestic Shipping (China)

 
 
Service Level Delivery Time Cost
Standard Shipping 3-5 business days Calculated at checkout
Express Shipping 1-2 business days Calculated at checkout

International Shipping

We proudly serve researchers and pharmaceutical partners across 69 countries worldwide, including:

  • 🇺🇸 United States

  • 🇬🇧 United Kingdom

  • 🇩🇪 Germany

  • 🇫🇷 France

  • 🇯🇵 Japan

  • 🇦🇺 Australia

  • 🇨🇦 Canada

  • 🇧🇷 Brazil

  • 🇮🇳 India

  • 🇰🇷 South Korea

  • 🇪🇸 Spain

  • 🇮🇹 Italy

  • And many more…

 
 
Region Estimated Delivery Time
North America 5-10 business days
Europe 5-10 business days
Asia-Pacific 3-7 business days
Rest of World 7-14 business days

Note: Delivery times are estimates and may vary due to customs clearance, holidays, or unforeseen delays.

Shipping Methods & Carriers

We partner with trusted international couriers to ensure reliable delivery:

  • DHL Express – Fast, trackable international shipping

  • FedEx – Reliable global delivery with tracking

  • UPS – Comprehensive international coverage

  • EMS – Cost-effective international shipping option

  • Specialized Cold Chain Logistics – For temperature-sensitive peptides (available upon request)

Packaging Standards

Your peptides arrive in optimal condition through our professional packaging:

  • Lyophilized Peptides: Sealed in sterile vials, packaged with desiccants, and protected in insulated shipping containers

  • Temperature Control: Ice packs and thermal insulation for temperature-sensitive shipments

  • Discreet Packaging: Professional, secure packaging with no external product labels

  • Documentation: All orders include Certificates of Analysis and customs documentation

  • Tracking: Every shipment includes a tracking number for real-time monitoring

Shipping Costs

Shipping costs are calculated based on:

  • Order weight and dimensions

  • Destination country

  • Selected shipping method

  • Insurance coverage

Free Shipping: Available for orders above a certain threshold (contact our sales team for details).

Customs, Duties & Taxes

International customers please note:

  • Import duties, taxes, and customs fees are not included in the product price or shipping cost

  • These charges are the responsibility of the recipient

  • Customs policies vary by country; please check with your local customs office

  • We provide complete documentation to facilitate customs clearance

  • We are not responsible for delays caused by customs processing

Order Processing Time

  • Standard Orders: Processed within 1-2 business days

  • Bulk Orders: Processing time varies; contact our sales team for estimated timelines

  • Custom Synthesis Orders: Lead time depends on sequence complexity; discussed during consultation

  • Orders Placed on Weekends/Holidays: Processed on the next business day

Order Tracking

Once your order ships, you’ll receive:

  • 📧 A shipping confirmation email with tracking number

  • 🔗 A link to track your package in real-time

  • 📱 SMS notifications (where available)

  • 📞 Customer support for any shipping questions

Our Returns Policy

Quality Guarantee

At Chengdu Kaijie, we stand behind the quality of every peptide we manufacture. Our GMP-certified production and rigorous quality control ensure you receive only the highest-purity peptides for your research. If you’re not satisfied with your purchase, we’re here to help.

Returns Eligibility

You may request a return or exchange under the following conditions:

 
 
Condition Eligible for Return
Damaged in transit ✅ Yes
Incorrect product shipped ✅ Yes
Product quality issue ✅ Yes (subject to testing)
Changed your mind ❌ No (perishable research materials)
Opened/unsealed product ❌ No (sterility compromised)
Product not stored properly ❌ No

Important: Peptides are temperature-sensitive research materials. We cannot accept returns on opened, reconstituted, or improperly stored products.

Return Process

Step 1: Contact our customer service team within 14 days of receiving your order

  • Email: [Insert Email]

  • Phone: [Insert Phone]

  • Please include your order number and photos of the issue

Step 2: Our team will review your request and provide a Return Merchandise Authorization (RMA) number

Step 3: Package the product securely in its original packaging

Step 4: Ship the product back to us using a trackable shipping method

Step 5: Upon receipt and inspection, we will process your refund or replacement

Damaged or Defective Products

If your peptide arrives damaged or appears defective:

  1. Document the damage – Take clear photos of the packaging and product

  2. Contact us immediately – Reach out within 48 hours of delivery

  3. Retain all packaging – Keep the original shipping materials for inspection

  4. We’ll resolve quickly – We’ll arrange a replacement or refund promptly

Note: Please do not use damaged peptides for research purposes.

Refund Processing

  • Refunds are processed within 5-10 business days of receiving and inspecting returned products

  • Refunds are issued to the original payment method

  • Shipping costs are non-refundable unless the error was ours

  • International returns may be subject to customs fees; these are the customer’s responsibility

Cancellation Policy

 
 
Cancellation Timing Policy
Before order processing Full refund available
After processing, before shipment Refund minus processing fee
After shipment Cannot cancel; follow returns procedure
Custom synthesis orders Cannot cancel once production begins

Contact Our Support Team

Have questions about shipping or returns? Our customer service team is here to help:

📧 Email: [Insert Email Address]
📞 Phone: [Insert Phone Number]
🕐 Hours: Monday – Friday, 9:00 AM – 6:00 PM (CST)

We aim to respond to all inquiries within 24 hours.

Frequently Asked Questions

1. Do you ship to the USA?
Yes! We ship to the United States and offer tracking on all international shipments.

2. How long does shipping take to the USA?
Estimated delivery is 5-10 business days, depending on your location and chosen shipping method.

3. What if my package is delayed?
While we strive for on-time delivery, delays can occur due to customs, weather, or carrier issues. We’ll help track your package and resolve any problems.

4. Are your peptides shipped with cold packs?
Yes, temperature-sensitive peptides are shipped with ice packs and insulated packaging to maintain integrity during transit.

5. Can I return a peptide if it doesn’t work for my research?
Peptides are research materials with no guaranteed outcomes. We do not accept returns based on research results, but we stand behind our product quality and purity claims.

6. Who pays for return shipping?

  • If the error was ours (wrong product, damaged, quality issue) – we cover return shipping

  • If you’re returning for other reasons – you cover return shipping costs

Our Promise

Chengdu Kaijie Biotechnology is committed to your satisfaction. We manufacture every peptide with care, test every batch rigorously, and package every order professionally. When you choose us as your peptide research partner, you’re choosing quality, transparency, and reliable service.

📦 Ready to Order? – Browse our high-purity research peptides and experience reliable shipping to your laboratory. Contact our team for bulk orders, custom synthesis, or shipping questions. Your research deserves the best – order with confidence at Chengdu Kaijie.