Advanced Synthesis Facility

Precision Peptide
Manufacturing

Reliable Supply for Research & Industry

High-purity peptide solutions with scalable production, strict quality standards, and global delivery support.

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Research-Grade Purity

Routine production purity standards reaching ≥98.9%

Factory-Direct Supply

Reliable Production • Flexible Customization • Stable Supply

Strict Quality Standards

Third-Party Testing Reports Available Upon Request

Reliable Global Fulfillment

Dual warehouse operations for stable and efficient order fulfillment.

Trending Products

Custom Synthesis

RETA

Cosmetic Peptides

GLOW

API Manufacturing

TIRZ

Research Peptides

KLOW

For project inquiries, please contact us via WhatsApp to request the full product catalog.

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XIXI-Peptide Facility
XIXI-Peptide Lab

About Xixipeptide

Xixipeptide is a China-based peptide manufacturing company with over 5 years of production experience. We focus on the precision manufacturing of peptide products and are committed to providing transparent, efficient, and reliable services

We support biotechnology companies, research laboratories, and innovative technology enterprises worldwide with consistent product quality. Third-party testing documentation can be provided upon request.

Streamlined Delivery Protocol

Order Confirmed

Once your payment is confirmed, your order will be immediately sent to our warehouse team. You will receive an order confirmation within 1 hour.

Packed & Dispatched

Your order will be packed within 24 hours.

It will be dispatched to airport logistics within 72 hours (excluding holidays).

Tracking Provided

Tracking number provided after package scan; real-time tracking available.

In Transit

International shipping: 5–15 business days

US warehouse shipping: 3–7 business days

Delivered & Supported

Our multilingual support team assists with post-delivery issues and order follow-ups. Replies within 8 hours.

COA

Every batch includes a Certificate of Analysis (COA) to verify product quality, with third-party testing support.

HPLC Report Sample
Mass Spec Report Sample
COA Document Sample

NMR Analysis Sample
Endotoxin Test Sample

Support team

Lead Chemist

Anne

QC Specialist

Eleanor

Synthesis Expert

Lucy

Conjugation Specialist

Ella

Purification Lead

Llily

Frequently Asked Questions

What is the typical purity of your products?
Our products generally have a purity of no less than 98%. We also provide complete Certificate of Analysis (COA) for your reference.
What should I do if my package is lost or detained by customs?
We offer direct shipping to certain destinations to streamline customs procedures. In case of package loss or customs detention, we will resend your order free of charge once.
Why are your products marked "For Research Use Only"?
In the United States, only licensed pharmacies can compound peptides and resell them for human use.

Peptides in powder form can still be sold, however, they must be marked “Research Use Only,” for legal and liability reasons.

PLEASE be aware that self administering “research” peptides could be dangerous! There’s a reason certain compounds are available ONLY under the careful supervision of a doctor. We do not want to see anyone harmed by misusing our products.

Furthermore, we cannot provide medical advice of any kind. Please be safe.
How are products packaged to maintain stability?
Our products are lyophilized and sealed in sterile vials. During transit, we apply suitable thermal insulation and temperature control measures based on destination and local climate.

Send a Message

Secure Your Premium Peptides – Connect with Our Expert Team Today!


  • E-MAIL

    eleanor8023@gmail.com

  • Whants app

    +853. 65269476

We commit to providing a detailed response to your inquiry within 10 hours of receiving your request.