Liberty Peptides vs Nexgen Peptides
Across the 39 products both vendors stock, Liberty Peptides has the lower effective price per mg on 16 and Nexgen Peptides on 23. Liberty Peptides lists 62 tracked listings across 45 products; Nexgen Peptides lists 94 across 56. On certificates of analysis the in-stock products we track rate partial at Liberty Peptides 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.
Liberty Peptides is a US research-peptide vendor based in Wilmington, DE that lists 53 injectable peptides.
- Price vs market median
- 5% below market
- Tracked catalog
- 45 products · $
- Cheaper on
- 16 of 39 shared
- COA coverage
- Partial
Nexgen Peptides is a US research-peptide vendor based in Fullerton, CA that lists 82 injectable peptides, 3 capsules and 2 tablets.
- Price vs market median
- 1% below market
- Tracked catalog
- 56 products · $$
- Cheaper on
- 23 of 39 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 Liberty Peptides 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 Liberty Peptides
6 products the other vendor does not list
- Adamax$4.40
- CJC-1295 (with DAC)$8.80
- Crystagen$2.75
- GHRP-6$6.80
- Gonadorelin$6.40
- P21$19.80
Only at Nexgen Peptides
17 products the other vendor does not list
- 5-Amino-1MQ$1.72
- Retatrutide$8.67
- Tirzepatide$1.55
- Adipotide$14.20
- AICAR$0.66
- Bronchogen$1.88
- Chonluten$2.70
- Cortagen$2.70
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Liberty Peptides cheaper than Nexgen Peptides?
- On the 39 products both vendors stock, Liberty Peptides has the lower effective price per mg on 16 and Nexgen Peptides on 23. 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?
- Liberty Peptides: partial, newest test dated 2025-12-12. 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 Liberty Peptides and Nexgen Peptides?
- Liberty Peptides: we have not recorded shipping or payment details yet. Nexgen Peptides: ships from US. Details come from each vendor's own site and can change without notice; check the storefront before ordering.