Peptide Works vs Real Peptides
Across the 33 products both vendors stock, Peptide Works has the lower effective price per mg on 21 and Real Peptides on 12. Peptide Works lists 87 tracked listings across 51 products; Real Peptides lists 68 across 41. On certificates of analysis both show broad 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.
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
- 21 of 33 shared
- COA coverage
- Broad
Real Peptides is a US research-peptide vendor based in Saint Petersburg, FL that lists 51 injectable peptides, 6 capsules and 4 nasal sprays.
- Price vs market median
- 16% above market
- Tracked catalog
- 41 products · $$$
- Cheaper on
- 12 of 33 shared
- COA coverage
- Broad
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 Real 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 Peptide Works
18 products the other vendor does not list
- DSIP$6.36
- Thymosin Alpha-1$6.81
- ACE-031$116.79
- Adipotide$7.77
- AICAR$0.66
- ARA-290$5.05
- B7-33$9.72
- Bronchogen$2.51
Only at Real Peptides
8 products the other vendor does not list
- NAD+$0.19
- Retatrutide$10.40
- Cagrilintide$26
- Dihexa$15
- Mazdutide$10.67
- P21$16
- PE-22-28$5.50
- Thymulin$4.80
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Peptide Works cheaper than Real Peptides?
- On the 33 products both vendors stock, Peptide Works has the lower effective price per mg on 21 and Real Peptides on 12. 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. Real Peptides: broad, newest test dated 2026-06-25. 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 Real Peptides?
- Peptide Works: accepts card, zelle, wire, crypto. Real Peptides: ships from Florida and California, 2-4 days in transit. Details come from each vendor's own site and can change without notice; check the storefront before ordering.