Peptides Source vs Precision Research Peptides
Across the 17 products both vendors stock, Peptides Source has the lower effective price per mg on 11 and Precision Research Peptides on 6. Peptides Source lists 98 tracked listings across 45 products; Precision Research Peptides lists 21 across 17. 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.
Peptides Source is a research-peptide vendor that lists 97 injectable peptides, including NAD+, Epitalon and CJC-1295 (no DAC).
- Price vs market median
- 4% below market
- Tracked catalog
- 45 products · $$
- Cheaper on
- 11 of 17 shared
- COA coverage
- None found
Precision Research Peptides is a research-peptide vendor that lists 21 injectable peptides, including Retatrutide, Epitalon and KPV.
- Price vs market median
- At market price
- Tracked catalog
- 17 products · $$
- Cheaper on
- 6 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 Source
28 products the other vendor does not list
- 5-Amino-1MQ$1.30
- CJC-1295 (no DAC)$6
- DSIP$7
- Melanotan II$4
- Pinealon$4.50
- Selank$5
- Semax$5
- Thymosin Alpha-1$7.50
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Peptides Source cheaper than Precision Research Peptides?
- On the 17 products both vendors stock, Peptides Source has the lower effective price per mg on 11 and Precision Research Peptides on 6. 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?
- Peptides Source: none found. Precision Research Peptides: 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?
- Peptides Source has 45 priced products in the current index and Precision Research Peptides has 17, 17 of which appear on both catalogs. 28 products are listed only by Peptides Source and 0 only by Precision Research Peptides.