Modern Science Peptides vs Nationwide Peptides
Across the 11 products both vendors stock, Modern Science Peptides has the lower effective price per mg on 3 and Nationwide Peptides on 8. Modern Science Peptides lists 19 tracked listings across 11 products; Nationwide Peptides lists 116 across 49. On certificates of analysis the in-stock products we track rate none found at Modern Science Peptides and partial at Nationwide Peptides. 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.
Modern Science Peptides is a research-peptide vendor that lists 19 injectable peptides, including MOTS-c, GHK-Cu and NAD+.
- Price vs market median
- 13% above market
- Tracked catalog
- 11 products · $$$
- Cheaper on
- 3 of 11 shared
- COA coverage
- None found
Nationwide Peptides is a US research-peptide vendor based in Sevierville, TN that lists 110 injectable peptides.
- Price vs market median
- At market price
- Tracked catalog
- 49 products · $$
- Cheaper on
- 8 of 11 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 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
38 products the other vendor does not list
- 5-Amino-1MQ$1.64
- CJC-1295 (no DAC)$7.70
- DSIP$5.20
- Epitalon$2.38
- FOXO4-DRI$21.70
- Ipamorelin$4.60
- KPV$6.50
- Pinealon$2.50
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Modern Science Peptides cheaper than Nationwide Peptides?
- On the 11 products both vendors stock, Modern Science Peptides has the lower effective price per mg on 3 and Nationwide Peptides on 8. 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?
- Modern Science Peptides: none found. 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 Modern Science Peptides and Nationwide Peptides?
- Modern Science Peptides: we have not recorded shipping or payment details yet. 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.