Liberty Peptides vs Peptides Greyhouse
Across the 42 products both vendors stock, Liberty Peptides has the lower effective price per mg on 22 and Peptides Greyhouse on 20. Liberty Peptides lists 62 tracked listings across 45 products; Peptides Greyhouse lists 94 across 62. On certificates of analysis the in-stock products we track rate partial at Liberty Peptides and none found at Peptides Greyhouse. 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.
Liberty Peptides is a US research-peptide vendor based in Wilmington, DE that lists 53 injectable peptides.
- Price vs market median
- 5% below market
- Tracked catalog
- 45 products · $
- Cheaper on
- 22 of 42 shared
- COA coverage
- Partial
Peptides Greyhouse is a research-peptide vendor that lists 92 injectable peptides, including Selank, Semax and Epitalon.
- Price vs market median
- 7% above market
- Tracked catalog
- 62 products · $$$
- Cheaper on
- 20 of 42 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 Liberty 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 Liberty Peptides
3 products the other vendor does not list
Only at Peptides Greyhouse
20 products the other vendor does not list
- 5-Amino-1MQ$4.60
- Retatrutide$12.67
- Tirzepatide$11.83
- Adipotide$7.60
- AICAR$0.96
- Cerebrolysin$0.75
- Chonluten$2.55
- Cortagen$2.25
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Liberty Peptides cheaper than Peptides Greyhouse?
- On the 42 products both vendors stock, Liberty Peptides has the lower effective price per mg on 22 and Peptides Greyhouse on 20. 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?
- Liberty Peptides: partial, newest test dated 2025-12-12. Peptides Greyhouse: 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.
- What does each vendor carry?
- Liberty Peptides has 45 priced products in the current index and Peptides Greyhouse has 62, 42 of which appear on both catalogs. 3 products are listed only by Liberty Peptides and 20 only by Peptides Greyhouse.