Isopure Research Peptides vs Peptides Source
Across the 14 products both vendors stock, Isopure Research Peptides has the lower effective price per mg on 7 and Peptides Source on 7. Isopure Research Peptides lists 18 tracked listings across 14 products; Peptides Source lists 98 across 45. 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.
Isopure Research Peptides is a research-peptide vendor that lists 17 injectable peptides, including Retatrutide, Tirzepatide and Ipamorelin.
- Price vs market median
- 11% below market
- Tracked catalog
- 14 products · $
- Cheaper on
- 7 of 14 shared
- COA coverage
- None found
Peptides Source is a research-peptide vendor that lists 97 injectable peptides, including NAD+, Epitalon and CJC-1295 (no DAC).
- Price vs market median
- 3% below market
- Tracked catalog
- 45 products · $$
- Cheaper on
- 7 of 14 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 Source
31 products the other vendor does not list
- 5-Amino-1MQ$1.30
- CJC-1295 (no DAC)$6
- DSIP$7
- Epitalon$1.30
- KPV$6
- Melanotan II$4
- NAD+$0.08
- Pinealon$4.50
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Isopure Research Peptides cheaper than Peptides Source?
- On the 14 products both vendors stock, Isopure Research Peptides has the lower effective price per mg on 7 and Peptides Source on 7. 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?
- Isopure Research Peptides: none found. Peptides Source: 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?
- Isopure Research Peptides has 14 priced products in the current index and Peptides Source has 45, 14 of which appear on both catalogs. 0 products are listed only by Isopure Research Peptides and 31 only by Peptides Source.