Peptide Works vs RUO.bio
Across the 37 products both vendors stock, Peptide Works has the lower effective price per mg on 13 and RUO.bio on 24. Peptide Works lists 87 tracked listings across 51 products; RUO.bio lists 57 across 46. On certificates of analysis the in-stock products we track rate broad at Peptide Works and none found at RUO.bio. 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.
Peptide Works is a research-peptide vendor that lists 85 injectable peptides, including Selank, PT-141 and Melanotan II.
- Price vs market median
- 14% below market
- Tracked catalog
- 51 products · $
- Cheaper on
- 13 of 37 shared
- COA coverage
- Broad
RUO.bio is a US research-peptide vendor based in Wyoming that lists 47 injectable peptides, including FOXO4-DRI, GHK-Cu and Ipamorelin.
- Price vs market median
- 28% below market
- Tracked catalog
- 46 products · $
- Cheaper on
- 24 of 37 shared
- COA coverage
- None found
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 Works and RUO.bio 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 Works
14 products the other vendor does not list
- Epitalon$1.14
- SS-31$6.96
- Adipotide$7.77
- B7-33$9.72
- Bronchogen$2.51
- CJC-1295 (with DAC)$10.72
- GDF-8 (Myostatin)$106.82
- Gonadorelin$7.50
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Peptide Works cheaper than RUO.bio?
- On the 37 products both vendors stock, Peptide Works has the lower effective price per mg on 13 and RUO.bio on 24. 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?
- Peptide Works: broad, newest test dated 2025-09-21. RUO.bio: none found. 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 Peptide Works and RUO.bio?
- Peptide Works: accepts card, zelle, wire, crypto. RUO.bio: accepts card, ach, wire, crypto. Details come from each vendor's own site and can change without notice; check the storefront before ordering.