Fusion Peptide vs Ion Peptide
Across the 24 products both vendors stock, Fusion Peptide has the lower effective price per mg on 21 and Ion Peptide on 2, and 1 prices the same to the cent. Fusion Peptide lists 159 tracked listings across 44 products; Ion Peptide lists 105 across 36. On certificates of analysis both show partial 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.
Fusion Peptide is a US research-peptide vendor based in Glendale, AZ that lists 87 injectable peptides.
- Price vs market median
- 46% below market
- Tracked catalog
- 44 products · $
- Cheaper on
- 21 of 24 shared
- COA coverage
- Partial
Ion Peptide is a US research-peptide vendor that lists 66 injectable peptides and 1 blend, including Tirzepatide, FOXO4-DRI and Retatrutide.
- Price vs market median
- 25% below market
- Tracked catalog
- 36 products · $
- Cheaper on
- 2 of 24 shared
- COA coverage
- Partial
Vendor facts
Dashes mark facts we have not recorded yet. Vendor-stated details come from each storefront and can change without notice. Facts for Fusion Peptide and Ion Peptide 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 Fusion Peptide
20 products the other vendor does not list
- BPC-157$2.50
- CJC-1295 (no DAC)$2.65
- Epitalon$1.10
- GHK-Cu$0.29
- MOTS-c$1.63
- Semax$1.69
- TB-500$3.25
- Thymosin Alpha-1$4.51
Only at Ion Peptide
12 products the other vendor does not list
- FOXO4-DRI$10.12
- Retatrutide$3.10
- Adamax$6.38
- AICAR$1
- Cagrilintide$8.42
- Cardiogen$2.01
- Cartalax$3.36
- L-Carnitine$0.01
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Fusion Peptide cheaper than Ion Peptide?
- On the 24 products both vendors stock, Fusion Peptide has the lower effective price per mg on 21 and Ion Peptide on 2, with 1 priced the same to the cent. 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?
- Fusion Peptide: partial, newest test dated 2026-02-25. Ion Peptide: partial, newest test dated 2026-05-19. 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 Fusion Peptide and Ion Peptide?
- Fusion Peptide: accepts card, zelle, cashapp, crypto. Ion Peptide: ships from US. Details come from each vendor's own site and can change without notice; check the storefront before ordering.