American Peptide Research vs Nationwide Peptides
Across the 34 products both vendors stock, American Peptide Research has the lower effective price per mg on 4 and Nationwide Peptides on 29, and 1 prices the same to the cent. American Peptide Research lists 54 tracked listings across 38 products; Nationwide Peptides lists 116 across 49. 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.
American Peptide Research is a US research-peptide vendor based in Englewood, New Jersey that lists 44 injectable peptides.
- Price vs market median
- 51% above market
- Tracked catalog
- 38 products · $$$
- Cheaper on
- 4 of 34 shared
- COA coverage
- Partial
Nationwide Peptides is a US research-peptide vendor based in Sevierville, TN that lists 108 injectable peptides.
- Price vs market median
- 3% above market
- Tracked catalog
- 49 products · $$
- Cheaper on
- 29 of 34 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 American Peptide Research and 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 American Peptide Research
4 products the other vendor does not list
- Follistatin$139
- PEG-MGF$37
- SLU-PP-332$16
- Thymalin$7.40
Only at Nationwide Peptides
15 products the other vendor does not list
- NAD+$0.12
- Retatrutide$2.95
- Tirzepatide$2.48
- ACE-031$150
- AICAR$1.08
- Cagrilintide$12.20
- Cardiogen$4.95
- Cerebrolysin$1.65
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is American Peptide Research cheaper than Nationwide Peptides?
- On the 34 products both vendors stock, American Peptide Research has the lower effective price per mg on 4 and Nationwide Peptides on 29, with 1 priced the same to the cent. 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?
- American Peptide Research: partial, newest test dated 2025-06-25. Nationwide Peptides: partial, newest test dated 2026-08-21. 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 American Peptide Research and Nationwide Peptides?
- American Peptide Research: accepts card. Nationwide Peptides: ships from US-registered facilities, 4-7 days in transit, accepts card. Details come from each vendor's own site and can change without notice; check the storefront before ordering.