Oath Research vs Peptide Supply Co
Across the 33 products both vendors stock, Oath Research has the lower effective price per mg on 1 and Peptide Supply Co on 32. Oath Research lists 70 tracked listings across 37 products; Peptide Supply Co lists 71 across 54. On certificates of analysis the in-stock products we track rate limited at Oath Research and broad at Peptide Supply Co. 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.
Oath Research is a US research-peptide vendor that lists 68 injectable peptides, including PT-141, BPC-157 and NAD+.
- Price vs market median
- 38% above market
- Tracked catalog
- 37 products · $$$
- Cheaper on
- 1 of 33 shared
- COA coverage
- Limited
Peptide Supply Co is a US research-peptide vendor that lists 62 injectable peptides, 11 blends and 1 capsule.
- Price vs market median
- 22% below market
- Tracked catalog
- 54 products · $
- Cheaper on
- 32 of 33 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 Oath Research and Peptide Supply Co 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 Oath Research
4 products the other vendor does not list
- GHRP-2$5
- GHRP-6$5
- Semaglutide$4.33
- Thymosin Beta-4$11
Only at Peptide Supply Co
21 products the other vendor does not list
- 5-Amino-1MQ$1.30
- Adamax$6
- ARA-290$4
- Cardiogen$2.50
- CJC-1295 (with DAC)$10
- Dihexa$16
- GHK-Cu + KPV$0.93
- GLOW$1.11
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Oath Research cheaper than Peptide Supply Co?
- On the 33 products both vendors stock, Oath Research has the lower effective price per mg on 1 and Peptide Supply Co on 32. 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?
- Oath Research: limited, newest test dated 2025-10-21. Peptide Supply Co: broad, newest test dated 2026-09-11. 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 Oath Research and Peptide Supply Co?
- Oath Research: ships from United States. Peptide Supply Co: shipping free, 2-2 days in transit. Details come from each vendor's own site and can change without notice; check the storefront before ordering.