Modern Aminos vs Nexgen Peptides
Across the 37 products both vendors stock, Modern Aminos has the lower effective price per mg on 11 and Nexgen Peptides on 24, and 2 price the same to the cent. Modern Aminos lists 71 tracked listings across 40 products; Nexgen Peptides lists 92 across 59. On certificates of analysis the in-stock products we track rate broad at Modern Aminos and limited at Nexgen Peptides. 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.
Modern Aminos is a US research-peptide vendor based in Garden City, Idaho that lists 58 injectable peptides.
- Price vs market median
- 1% below market
- Tracked catalog
- 40 products · $$
- Cheaper on
- 11 of 37 shared
- COA coverage
- Broad
Nexgen Peptides is a US research-peptide vendor based in Fullerton, CA that lists 87 injectable peptides, 3 capsules and 2 tablets.
- Price vs market median
- At market price
- Tracked catalog
- 59 products · $$
- Cheaper on
- 24 of 37 shared
- COA coverage
- Limited
Vendor facts
Dashes mark facts we have not recorded yet. Vendor-stated details come from each storefront and can change without notice. Facts for Modern Aminos and Nexgen 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 Modern Aminos
3 products the other vendor does not list
- Retatrutide$5.82
- CJC-1295 (with DAC)$10.40
- PE-22-28$5.40
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Modern Aminos cheaper than Nexgen Peptides?
- On the 37 products both vendors stock, Modern Aminos has the lower effective price per mg on 11 and Nexgen Peptides on 24, with 2 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?
- Modern Aminos: broad, newest test dated 2026-08-27. Nexgen Peptides: limited, newest test dated 2026-08-30. 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 Modern Aminos and Nexgen Peptides?
- Modern Aminos: ships from Garden City, Idaho, 2-5 days in transit, accepts card, ach, crypto. Nexgen Peptides: ships from US. Details come from each vendor's own site and can change without notice; check the storefront before ordering.