Premium Peptide Manufacturer
Direct Source Factory

High-purity peptides for research, cosmetics, and custom synthesis. Global wholesale distribution, strictly tested by HPLC/MS. OEM/ODM services available.

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Why So Many Peptides Suppliers Choose Us?

Partnering with a reliable source factory ensures quality, scale, and profitability. Here is how we empower your peptide business.

Professional 3rd-Party Testing

We provide completely transparent and unbiased third-party laboratory test reports to verify exact purity and molecular weight.

Massive Factory Strength

Backed by over 20 years of manufacturing experience and a state-of-the-art 90,000㎡ production facility.

Transparent Pricing

Both wholesale and retail supported. Get direct factory wholesale pricing with no MOQ—even on 1 piece.

Worry-Free Service

Our dedicated team offers 24/7 B2B customer support, maintaining an impressive issue resolution rate of >99%.

Wide Product Selection

Access a comprehensive catalog of high-purity peptides covering research, cosmetic, and API grades.

Flawless Quality Assurance

Every batch undergoes a strict dual-testing protocol (HPLC/MS) to guarantee a minimum purity of >99%.

Our Core Peptide Categories

Cosmetic Peptides

Cosmetic Peptides

Anti-aging, skin repair, and hair growth active ingredients for cosmetics brands.

  • Copper Peptide (GHK-Cu)
  • Argireline
  • Matrixyl 3000
Inquire Wholesale Price →
Research Peptides

Research Peptides

High-purity standard peptides for laboratory and scientific research purposes.

  • BPC-157
  • TB-500
  • Melanotan II
Inquire Wholesale Price →
API Peptides

Pharmaceutical API

Bulk active pharmaceutical ingredients compliant with strict GMP standards.

  • Semaglutide
  • Tirzepatide
  • Liraglutide
Inquire Wholesale Price →
Custom Synthesis

Custom Synthesis

Tailor-made peptide sequences designed to your exact specifications (mg to kg).

  • Complex Modifications
  • Isotope Labeling
  • OEM/ODM Vials
Request Custom Quote →

State-of-the-Art Laboratory & QC

Quality is our baseline. As a direct manufacturer, we maintain full control over the synthesis, purification, and lyophilization processes.

  • HPLC & MS Testing

    Every batch is verified for purity and molecular weight before leaving the facility.

  • ISO 9001 & GMP Standard

    Our cleanrooms and manufacturing processes comply with international pharmaceutical standards.

Lab Test Scientists

Start Your B2B Partnership Today

Looking for a reliable peptide supplier? Leave us your requirements, and our foreign trade sales engineers will quote you within 12 hours.

Email Us

support@cofkoelectronics.com

Contact Number

+1 2136568716

Company Location

5517 Riverview Dr.
Riverside, CA 92509-6328

Request a Wholesale Quote