Nationwide Peptides vs peptidology
Across the 30 products both vendors stock, Nationwide Peptides has the lower effective price per mg on 10 and peptidology on 19, and 1 prices the same to the cent. Nationwide Peptides lists 108 tracked listings across 47 products; peptidology lists 74 across 43. On certificates of analysis the in-stock products we track rate partial at Nationwide Peptides and broad at peptidology. 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 105 injectable peptides.
- Price vs market median
- 6% above market
- Tracked catalog
- 47 products · $$$
- Cheaper on
- 10 of 30 shared
- COA coverage
- Partial
peptidology is a US research-peptide vendor based in Scottsdale, AZ that lists 60 injectable peptides and 1 capsule.
- Price vs market median
- 10% below market
- Tracked catalog
- 43 products · $
- Cheaper on
- 19 of 30 shared
- COA coverage
- Broad
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 peptidology 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
17 products the other vendor does not list
- PT-141$6.10
- Retatrutide$3.32
- Semax$7.40
- SS-31$3.98
- Tesamorelin$7.30
- Tirzepatide$2.48
- Adamax$7.70
- Adipotide$9.10
Only at peptidology
13 products the other vendor does not list
- DSIP$3.54
- NAD+$0.08
- Cartalax$2.68
- Cortagen$2.47
- Follistatin$161.99
- Livagen$2.45
- Pancragen$2.31
- PEG-MGF$15.66
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Nationwide Peptides cheaper than peptidology?
- On the 30 products both vendors stock, Nationwide Peptides has the lower effective price per mg on 10 and peptidology on 19, 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?
- Nationwide Peptides: partial, newest test dated 2026-08-21. peptidology: broad, newest test dated 2026-09-09. 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 peptidology?
- Nationwide Peptides: ships from US-registered facilities, 4-7 days in transit, accepts card. peptidology: ships from Scottsdale, AZ. Details come from each vendor's own site and can change without notice; check the storefront before ordering.