Nationwide Peptides vs Zesty Rat
Across the 27 products both vendors stock, Nationwide Peptides has the lower effective price per mg on 15 and Zesty Rat on 12. Nationwide Peptides lists 116 tracked listings across 49 products; Zesty Rat lists 43 across 31. On certificates of analysis both show partial COA coverage of the in-stock products we track. Based on the certificates our crawler found; vendors may publish more than we index. These are price and document observations, not quality ratings, and neither vendor is endorsed.
Nationwide Peptides is a US research-peptide vendor based in Sevierville, TN that lists 108 injectable peptides.
- Price vs market median
- 3% above market
- Tracked catalog
- 49 products · $$
- Cheaper on
- 15 of 27 shared
- COA coverage
- Partial
Zesty Rat is a US research-peptide vendor that lists 34 injectable peptides, including Pinealon, TB-500 and SS-31.
- Price vs market median
- At market price
- Tracked catalog
- 31 products · $$
- Cheaper on
- 12 of 27 shared
- COA coverage
- Partial
Vendor facts
Dashes mark facts we have not recorded yet. Vendor-stated details come from each storefront and can change without notice. Facts for Nationwide Peptides and Zesty Rat were extracted from the vendor's site and not yet reviewed by us.
Certificates on file
Coverage rates how many of the in-stock products we track have a certificate our pipeline read and matched to a catalog peptide. Based on the certificates our crawler found; vendors may publish more than we index. We do not test products, and a certificate cannot show authenticity, chain of custody or sterility.
Carried by one vendor only
Only at Nationwide Peptides
22 products the other vendor does not list
- Ipamorelin$4.60
- NAD+$0.12
- Selank$7.70
- Semax$7.40
- Tesamorelin$7.30
- Tirzepatide$2.48
- ACE-031$150
- Cagrilintide$12.20
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Nationwide Peptides cheaper than Zesty Rat?
- On the 27 products both vendors stock, Nationwide Peptides has the lower effective price per mg on 15 and Zesty Rat on 12. Each side uses the cheapest in-stock listing we track for that product, after any public discount code, and prices change often.
- How much COA coverage does each vendor have?
- Nationwide Peptides: partial, newest test dated 2026-08-21. Zesty Rat: partial, newest test dated 2026-10-02. Based on the certificates our crawler found; vendors may publish more than we index. We do not test products ourselves, and a certificate cannot prove authenticity or sterility.
- How do shipping and payment differ between Nationwide Peptides and Zesty Rat?
- Nationwide Peptides: ships from US-registered facilities, 4-7 days in transit, accepts card. Zesty Rat: ships from United States, shipping free, 2-4 days in transit, accepts card. Details come from each vendor's own site and can change without notice; check the storefront before ordering.