Key Takeaways
- #1 ranked vendor in our scoring system (price 40%, COA 30%, reputation 30%)
- 25+ peptides with COA documentation on every product
- 10% off with code
- Prices from $35/5mg on popular compounds like BPC-157
- QR-linked COAs on every product — scan to verify testing
- Not perfect — newer brand, occasional support delays during peak demand
EZ Peptides ranks first in our vendor comparison for a reason: broadest verified catalog, competitive pricing, and COA documentation that sets the standard for the current market.
But a #1 ranking doesn't mean flawless. This review covers what EZ Peptides does well, where they fall short, and how they stack up against alternatives — based on 12 months of continuous tracking, not a single snapshot.
Who Is EZ Peptides?
EZ Peptides is a US-based research peptide supplier operating since early 2025. They entered the market as a quality-focused alternative and gained significant traction after the Peptide Sciences shutdown and Amino Asylum raid displaced thousands of customers.
Their positioning is straightforward: broad catalog, verified quality, competitive prices. No nootropics, no SARMs, no prescription medications — just peptides with COA documentation.
Product Catalog
EZ Peptides carries 25+ peptides across the major categories:
Weight management: semaglutide, tirzepatide, retatrutide Healing & recovery: BPC-157, TB-500, TB-4-FRAG Growth hormone: CJC-1295, Ipamorelin, GHRP-2, GHRP-6, MK-677 Performance: Follistatin-344, IGF-1 LR3, MGF Other: Melanotan-2, PT-141, Selank, Semax, Epithalon, GHK-Cu, 5-Amino-1MQ
The catalog covers virtually everything Peptide Sciences carried. A few niche compounds may be missing, but for the peptides most researchers actually use, coverage is complete.
COA & Quality Testing
This is where EZ Peptides differentiates.
Every product ships with a QR code that links directly to its Certificate of Analysis. Scan it with your phone and you see third-party testing results for that specific product — purity percentage, identity confirmation, and testing lab details.
This is meaningful because:
- It's per-product, not per-SKU — you can verify the item in your hand was tested
- The QR system is harder to fake than a static PDF
- It demonstrates ongoing investment in quality infrastructure
All products test at pharmaceutical-grade purity (>99%) according to their COA documentation. Third-party review sites like Peptide Critic rate EZ Peptides at 4.7/5 stars.
How it compares: Penguin Peptides offers batch-specific COAs (the most granular option). EZ Peptides' QR-linked COAs are per-product. Both are significantly better than vendors who provide no COA or only generic per-product certificates that might be months old.
Pricing
EZ Peptides' base prices are competitive with the market. With the 10% discount, they're among the cheapest options available.
| Peptide | EZ Price | After 10% Off | Market Low | Vial Size |
|---|---|---|---|---|
| BPC-157 | $35.00 | $31.50 | $35.00 | 5mg |
| Semaglutide | $34.99 | $31.49 | $34.99 | 5mg |
| Retatrutide | $41.99 | $37.79 | $39.99 | 5mg |
| TB-500 | $35.00 | $31.50 | $35.00 | 5mg |
| CJC-1295 | $36.99 | $33.29 | $33.99 | 5mg |
| Tirzepatide | $44.99 | $40.49 | $42.99 | 5mg |
For live pricing across all vendors: Full price comparison →
How it compares: Orbitrex has the lowest base prices on several compounds. But EZ Peptides with the 10% discount is competitive or cheaper on most. Ascension Peptides with their 50% discount beats everyone on effective price.
