Nexgen Peptides vs OPS Peptide Science
Across the 33 products both vendors stock, Nexgen Peptides has the lower effective price per mg on 32 and OPS Peptide Science on 1. Nexgen Peptides lists 92 tracked listings across 57 products; OPS Peptide Science lists 89 across 46. On certificates of analysis the in-stock products we track rate limited at Nexgen Peptides and none found at OPS Peptide Science. 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.
Nexgen Peptides is a US research-peptide vendor based in Fullerton, CA that lists 85 injectable peptides, 3 capsules and 2 tablets.
- Price vs market median
- 2% below market
- Tracked catalog
- 57 products · $$
- Cheaper on
- 32 of 33 shared
- COA coverage
- Limited
OPS Peptide Science is a research-peptide vendor that lists 89 injectable peptides, including GHK-Cu, Tirzepatide and Retatrutide.
- Price vs market median
- 57% above market
- Tracked catalog
- 46 products · $$$
- Cheaper on
- 1 of 33 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. Facts for 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 Nexgen Peptides
24 products the other vendor does not list
- FOXO4-DRI$15.70
- SS-31$3.28
- AICAR$0.66
- ARA-290$5
- Bronchogen$1.88
- Cardiogen$2.20
- Cartalax$2.20
- Chonluten$2.70
Only at OPS Peptide Science
13 products the other vendor does not list
- NAD+$0.20
- Retatrutide$6.33
- ACE-031$200
- Cerebrolysin$0.92
- CJC-1295 (with DAC)$41
- Dermorphin$14
- GDF-8 (Myostatin)$190
- GHRP-2$10
Prices shown are per mg for the cheapest in-stock listing we track.
Questions
- Is Nexgen Peptides cheaper than OPS Peptide Science?
- On the 33 products both vendors stock, Nexgen Peptides has the lower effective price per mg on 32 and OPS Peptide Science on 1. 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?
- Nexgen Peptides: limited, newest test dated 2026-08-30. OPS Peptide Science: 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.
- How do shipping and payment differ between Nexgen Peptides and OPS Peptide Science?
- Nexgen Peptides: ships from US. OPS Peptide Science: we have not recorded shipping or payment details yet. Details come from each vendor's own site and can change without notice; check the storefront before ordering.