Vendors

NextGen Peptides vs Redline Bio Labs

Across the 25 products both vendors stock, NextGen Peptides has the lower effective price per mg on 23 and Redline Bio Labs on 2. NextGen Peptides lists 64 tracked listings across 25 products; Redline Bio Labs lists 81 across 43. On certificates of analysis the in-stock products we track rate broad at NextGen Peptides and none found at Redline Bio Labs. 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.

NextGen Peptides

NextGen Peptides is a US research-peptide vendor based in Carlsbad, CA that lists 39 injectable peptides, 2 capsules and 3 nasal sprays.

Price vs market median
34% below market
Tracked catalog
25 products · $
Cheaper on
23 of 25 shared
COA coverage
Broad
Visit NextGen Peptides
Redline Bio Labs

Redline Bio Labs is a research-peptide vendor that lists 77 injectable peptides, including FOXO4-DRI, Epitalon and SS-31.

Price vs market median
1% below market
Tracked catalog
43 products · $$
Cheaper on
2 of 25 shared
COA coverage
None found
Visit Redline Bio Labs

Vendor facts

Detail
NextGen Peptides
Redline Bio Labs
Sells
39 vials, 2 capsules, 3 sprays
77 vials
Location
Carlsbad, CA, US
—
Ships from
Carlsbad, CA (US)
—
In transit
2-2 days
—
Payment
card, paypal
—
Storefront
Next.js
—
Tracked by us since
Jul 2026
—
Tracked listings
64 across 25 products
81 across 43 products

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

Certificates on file

Detail
NextGen Peptides
Redline Bio Labs
COA coverage
Broad
None found
Certificates
28 current
0 current
Labs
1 named, most from ILS
—
Newest test date
Sep 23, 2026
—
Third-party tested claim
—
—
Made in USA claim
a few listings
—

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.

Price per mg on shared products

25 products both stock
Product
NextGen Peptides
Redline Bio Labs
BPC-157
$2.75
$4.63
DSIP
$3.50
$4.93
Epitalon
$1.50
$1.64
GHK-Cu
$0.40
$0.60
Ipamorelin
$4.20
$6
KPV
$2.67
$5.50
Melanotan II
$2.50
$3.90
MOTS-c
$2
$3.20
NAD+
$0.10
$0.09
PT-141
$2.50
$5.20
Retatrutide
$2.90
$5.46
Selank
$2.50
$2.80
Semax
$3
$2.80
TB-500
$3.20
$7
Tesamorelin
$4.50
$5.83
Tirzepatide
$1.67
$3.02
Adamax
$5.50
$9.10
AOD-9604
$5.50
$7.90
ARA-290
$3.75
$4.90
Cagrilintide
$6.50
$7.10
Kisspeptin-10
$3.50
$5.50
Melanotan I
$2.50
$4.40
Sermorelin
$4.50
$7.60

Showing 24 of 25 shared products; both full catalogs sit on the vendor pages. The lower price of each pair is highlighted. Prices are the cheapest in-stock listing we track for that product, per mg after any public discount code, and they move daily.

Carried by one vendor only

Only at Redline Bio Labs

18 products the other vendor does not list

10 more on the Redline Bio Labs page

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

Questions

Is NextGen Peptides cheaper than Redline Bio Labs?
On the 25 products both vendors stock, NextGen Peptides has the lower effective price per mg on 23 and Redline Bio Labs on 2. 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?
NextGen Peptides: broad, newest test dated 2026-09-23. Redline Bio Labs: 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 NextGen Peptides and Redline Bio Labs?
NextGen Peptides: ships from Carlsbad, CA (US), 2-2 days in transit, accepts card, paypal. Redline Bio Labs: 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.

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