Nationwide Peptides vs OPS Peptide Science
Across the 41 products both vendors stock, Nationwide Peptides has the lower effective price per mg on 39 and OPS Peptide Science on 2. Nationwide Peptides lists 116 tracked listings across 49 products; OPS Peptide Science lists 89 across 46. On certificates of analysis the in-stock products we track rate partial at Nationwide Peptides and none found at OPS Peptide Science. 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 110 injectable peptides.
- Price vs market median
- At market price
- Tracked catalog
- 49 products · $$
- Cheaper on
- 39 of 41 shared
- COA coverage
- Partial
OPS Peptide Science is a research-peptide vendor that lists 89 injectable peptides, including GHK-Cu, Tirzepatide and Retatrutide.
- Price vs market median
- 57% above market
- Tracked catalog
- 46 products · $$$
- Cheaper on
- 2 of 41 shared
- COA coverage
- None found
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 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
8 products the other vendor does not list
- FOXO4-DRI$21.70
- SS-31$3.98
- AICAR$1.12
- ARA-290$4.30
- Cardiogen$4.95
- Gonadorelin$12.50
- L-Carnitine$0.08
- PE-22-28$5.80
Only at OPS Peptide Science
5 products the other vendor does not list
- Dermorphin$14
- Dihexa$12.90
- GDF-8 (Myostatin)$190
- Thymalin$8
- Triptorelin$17.50
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Nationwide Peptides cheaper than OPS Peptide Science?
- On the 41 products both vendors stock, Nationwide Peptides has the lower effective price per mg on 39 and OPS Peptide Science on 2. 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. OPS Peptide Science: none found. 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 OPS Peptide Science?
- Nationwide Peptides: ships from US-registered facilities, 4-7 days in transit, accepts card. OPS Peptide Science: we have not recorded shipping or payment details yet. Details come from each vendor's own site and can change without notice; check the storefront before ordering.