Hydro Research vs Peptide Supply Co
Across the 29 products both vendors stock, Hydro Research has the lower effective price per mg on 7 and Peptide Supply Co on 21, and 1 prices the same to the cent. Hydro Research lists 33 tracked listings across 29 products; Peptide Supply Co lists 71 across 56. On certificates of analysis the in-stock products we track rate none found at Hydro 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.
Hydro Research is a research-peptide vendor that lists 33 injectable peptides and 1 tablet, including MOTS-c, Melanotan II and Tesamorelin.
- Price vs market median
- 8% below market
- Tracked catalog
- 29 products · $
- Cheaper on
- 7 of 29 shared
- COA coverage
- None found
Peptide Supply Co is a US research-peptide vendor that lists 69 injectable peptides, 11 blends and 1 capsule.
- Price vs market median
- 22% below market
- Tracked catalog
- 56 products · $
- Cheaper on
- 21 of 29 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 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 Peptide Supply Co
27 products the other vendor does not list
- Pinealon$3.50
- Retatrutide$3.33
- Tirzepatide$1.75
- ARA-290$4
- Cardiogen$2.50
- Cartalax$2.50
- CJC-1295 (with DAC)$10
- Dihexa$16
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Hydro Research cheaper than Peptide Supply Co?
- On the 29 products both vendors stock, Hydro Research has the lower effective price per mg on 7 and Peptide Supply Co on 21, 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?
- Hydro Research: none found. 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 Hydro Research and Peptide Supply Co?
- Hydro Research: we have not recorded shipping or payment details yet. 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.