Improved Peptides vs Peptides Greyhouse
Across the 17 products both vendors stock, Improved Peptides has the lower effective price per mg on 9 and Peptides Greyhouse on 8. Improved Peptides lists 19 tracked listings across 17 products; Peptides Greyhouse lists 93 across 63. On certificates of analysis both show none found COA coverage of the in-stock products we track. 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.
Improved Peptides is a research-peptide vendor that lists 19 injectable peptides, including 5-Amino-1MQ, GHK-Cu and Semax.
- Price vs market median
- 36% above market
- Tracked catalog
- 17 products · $$$
- Cheaper on
- 9 of 17 shared
- COA coverage
- None found
Peptides Greyhouse is a research-peptide vendor that lists 93 injectable peptides, including Selank, Semax and Epitalon.
- Price vs market median
- 7% above market
- Tracked catalog
- 63 products · $$$
- Cheaper on
- 8 of 17 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.
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 Peptides Greyhouse
46 products the other vendor does not list
- CJC-1295 (no DAC)$7
- FOXO4-DRI$27.60
- Ipamorelin$5.50
- Pinealon$2.25
- SS-31$4.67
- Thymosin Alpha-1$10.50
- Adamax$7.50
- Adipotide$7.60
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Improved Peptides cheaper than Peptides Greyhouse?
- On the 17 products both vendors stock, Improved Peptides has the lower effective price per mg on 9 and Peptides Greyhouse on 8. 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?
- Improved Peptides: none found. 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?
- Improved Peptides has 17 priced products in the current index and Peptides Greyhouse has 63, 17 of which appear on both catalogs. 0 products are listed only by Improved Peptides and 46 only by Peptides Greyhouse.