Vendors

Nexgen Peptides vs Peptide Works

Nexgen Peptides and Peptide Works have no priced products in common in the current index. Nexgen Peptides lists 94 tracked listings across 0 products; Peptide Works lists 92 across 51. On certificates of analysis the in-stock products we track rate not assessed at Nexgen Peptides and broad at Peptide Works. 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.

We hold limited price data for Nexgen Peptides, so parts of this comparison are thinner than usual.

Nexgen Peptides

Nexgen Peptides is a US research-peptide vendor based in Fullerton, CA.

Price vs market median
Not enough matched rows
Tracked catalog
0 products
COA coverage
Not assessed
Visit Nexgen Peptides
Peptide Works

Peptide Works is a research-peptide vendor that lists 84 injectable peptides, including PT-141, Melanotan II and GHK-Cu.

Price vs market median
19% below market
Tracked catalog
51 products · $
COA coverage
Broad
Visit Peptide Works

Vendor facts

Detail
Nexgen Peptides
Peptide Works
Sells
—
84 vials
Location
Fullerton, CA, US
—
Ships from
US
—
Ships worldwide
—
Yes
Payment
—
card, zelle, wire, crypto
Storefront
woocommerce
woocommerce
Tracked by us since
Jul 2026
Aug 2026
Tracked listings
94 across 0 products
92 across 51 products

Dashes mark facts we have not recorded yet. Vendor-stated details come from each storefront and can change without notice. Facts for Nexgen Peptides and Peptide Works were extracted from the vendor's site and not yet reviewed by us.

Certificates on file

Detail
Nexgen Peptides
Peptide Works
COA coverage
Not assessed
Broad
Certificates
13 current
52 current
Labs
2 named, most from Freedom Diagnostics
1 named, most from Peptide Works
Newest test date
Aug 30, 2026
Sep 21, 2025
Third-party tested claim
—
—

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.

Shared catalog

Nexgen Peptides and Peptide Works have no priced products in common in the current index, so there is nothing to compare price for price.

Carried by one vendor only

Only at Peptide Works

51 products the other vendor does not list

43 more on the Peptide Works page

Prices shown are per mg for the cheapest in-stock listing we track.

Questions

How much COA coverage does each vendor have?
Nexgen Peptides: not assessed, newest test dated 2026-08-30. Peptide Works: broad, newest test dated 2025-09-21. 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 Peptide Works?
Nexgen Peptides: ships from US. Peptide Works: accepts card, zelle, wire, crypto. Details come from each vendor's own site and can change without notice; check the storefront before ordering.
What does each vendor carry?
Nexgen Peptides has 0 priced products in the current index and Peptide Works has 51, with no overlap. 0 products are listed only by Nexgen Peptides and 51 only by Peptide Works.

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