Wholesale Bulk Peptides — Domestic Supply for Resellers and Peptide Brands

Tier-priced bulk peptide supply with batch-specific Certificates of Analysis. MOQ 10 vials. US warehouse. Private label available.

  • HPLC + Mass-Spec Verified
  • Batch COAs Included
  • US-Manufactured (cGMP)
  • 1–2 Day Domestic Shipping
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Wholesale Bulk Peptides (WBP) is a US-based B2B peptide supplier purpose-built for resellers, emerging peptide brands, wellness clinics, and research labs. We stock high-purity lyophilized peptides in domestic warehouses, publish batch-specific COAs for every lot, and offer tier pricing that scales from 10 vials to 10,000+ units. Whether you need white-label stock or fully private-labeled packaging, WBP is the supply partner built around your margin.

Tier Pricing Built for Resellers

The more you order, the more you save. All tiers ship from US warehouses with batch COAs included at no extra cost.

Tier Quantity (vials) Typical Discount Best For
Starter 10 – 49 ~40% off retail New resellers, sample testing
Growth 50 – 99 ~50% off retail Established resellers
Scale 100 – 499 ~58% off retail Brands & clinics scaling up
Enterprise 500+ Custom contract pricing High-volume distributors

View full wholesale program details →

Catalog Highlights

Explore our most popular research peptides. All compounds ship with batch-specific Certificates of Analysis.

Browse Full Catalog

Three Ways to Source

White Label

Sell our peptides under your own brand. We provide the product, you apply your label and packaging. Low MOQs, fast turnaround.

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Private Label

Full custom branding from vial to box. We handle formulation, filling, labeling, and packaging to your spec. Your brand, our facility.

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Drop Shipping

Zero inventory risk. We ship directly to your customers from our US warehouse with blind shipping. No minimum ongoing commitment.

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Every Batch Tested. Every COA Published.

Rigorous third-party analytical testing on every production lot. Full transparency, no exceptions.

HPLC Purity

High-performance liquid chromatography confirms peptide purity on every batch. Typical results: >98%.

Mass Spectrometry

LC-MS/MS identity verification confirms exact molecular weight and structure match for every compound.

Endotoxin (LAL)

Limulus amebocyte lysate testing ensures endotoxin levels fall well within safe research-grade limits.

Identity Confirmation

Each lot undergoes peptide sequencing and identity checks against reference standards.

Retention Samples

Archived samples from every production batch are stored for independent re-testing and full traceability.

Browse COA Library Learn about our testing process →

Who We Supply

Resellers

Online and brick-and-mortar resellers who need reliable, competitively priced peptide inventory with full COA documentation for their own customers.

Emerging Peptide Brands

New brands building a peptide line from scratch. We offer private-label packaging, low MOQs, and the supply consistency needed to grow with confidence.

Wellness Clinics & Med Spas

Clinics sourcing peptides for patient protocols. We provide cGMP-compliant products with full traceability and documentation for clinical confidence.

Research & Academic Labs

University and independent laboratories conducting in-vitro research. Our batch-specific COAs and retention samples meet the documentation standards you require.

From Application to First Order in 1 Business Day

  1. Apply

    Complete our brief wholesale application. Tell us about your business, your target compounds, and your volume expectations.

  2. Get Approved

    Our team reviews applications within one business day. Once approved, you receive tier pricing access and a dedicated account rep.

  3. Sample Pack

    Start with a curated sample pack to verify quality and test your market. Full COA documentation included with every sample order.

  4. Scale Up

    Move into volume tiers as your orders grow. Unlock deeper discounts, private-label options, and priority fulfillment.

Apply for Wholesale Account

Resources for Resellers and Emerging Brands

How to Start a Peptide Brand

A step-by-step guide to launching your own peptide brand, from entity formation and compliance to sourcing and marketing.

Read the guide →

Private Label Peptide Guide

Everything you need to know about custom-branded peptide packaging: lead times, artwork specs, MOQs, and compliance considerations.

Read the guide →

How to Read a COA

Learn how to interpret Certificates of Analysis: HPLC purity charts, mass-spec results, endotoxin limits, and what the numbers actually mean.

Read the guide →

Ready to Source at Wholesale?

Join the growing network of resellers, brands, and clinics sourcing high-purity peptides from WBP.

Apply for Wholesale Account Contact a Sales Rep