A
$42.0$2.10 /mg
24% below the 20 mg middle price
Freedom Diagnostics, BioRegen, 2026-06-20
View Cortagen goalphalabs.com
Cortagen 20 mg price
29 sellers, $0.600 to $5.00 per milligram, middle price $2.75, read 2026-09-30.
Animal or lab only. Only animal or lab studies on this page. No study in people yet. 1 animal study, 1 lab study, no human study.4 reported
Some seller links may pay this site when you buy through them. A payment never changes a seller's tier or rank, and no seller has a say in any page.
Best value with a certificate: Go Alpha Labs, $42.0 for 20 mg, $2.10 per mg. Cheapest of all: Arizona Mall at $0.600 per mg for 20 mg, grade C. Cortagen 20 mg middle price is $2.75 per mg across 29 sellers.
A
$45.0$2.25 /mg
18% below the 20 mg middle price
Freedom Diagnostics, 2026-03-31
View Cortagen luxepeptides.is
A
$50.0$2.50 /mg
9% below the 20 mg middle price
Vanguard Laboratory, 2026-04-28
View Cortagen corepeptidesofficial.com
A
$55.0$2.75 /mg
level with the 20 mg middle price
Bioviridian, Freedom Diagnostics, MDx BioAnalytical Laboratory, 2026-01-21
View Cortagen atomixresearch.com
A
$55.0$2.75 /mg
level with the 20 mg middle price
Freedom Diagnostics, 2026-06-21
View Cortagen peptifylabs.com
A
$55.0$2.75 /mg
level with the 20 mg middle price
Freedom Diagnostics, 2026-09-25
View Cortagen truelabpeptides.com
A
$59.0$2.95 /mg
7% above the 20 mg middle price
Vanguard Laboratory, 2026-05-05
View Cortagen corepeptides.com
A
$60.0$3.00 /mg
9% above the 20 mg middle price
Freedom Diagnostics, 2026-08-05
View Cortagen erospeptides.com
A
$67.0$3.35 /mg
22% above the 20 mg middle price
Chromate, 2026-06-22
View Cortagen peptidepowerus.is
A
$68.0$3.40 /mg
24% above the 20 mg middle price
Horizon Analytical, 2026-06-17
View Cortagen biogenixpeptides.com
B
$59.0$2.95 /mg
7% above the 20 mg middle price
Certificate with a batch number, no laboratory named
View Cortagen cenexalabs.com
B
$100$5.00 /mg
82% above the 20 mg middle price
Certificate with a batch number, no laboratory named
View Cortagen usapeptidescience.com
C
$12.0$0.600 /mg
78% below the 20 mg middle price
Site says it tests; the certificates sit behind a login or a bot wall and none could be read
View Cortagen arizona-mall.com
C
$33.0$1.65 /mg
40% below the 20 mg middle price
Site says it tests; no certificate could be found
View Cortagen labratpeptides.com
C
$34.0$1.70 /mg
38% below the 20 mg middle price
Site says it tests; the certificates sit behind a login or a bot wall and none could be read
View Cortagen prymalab.net
C
$40.0$2.00 /mg
27% below the 20 mg middle price
Site says it tests; the certificates sit behind a login or a bot wall and none could be read
View Cortagen prymalab.net
C
$49.0$2.45 /mg
11% below the 20 mg middle price
Site says it tests; the certificates sit behind a login or a bot wall and none could be read
View Cortagen purehealthpeptides.com
C
$50.0$2.50 /mg
9% below the 20 mg middle price
Site says it tests; no certificate could be found
View Cortagen huaianhanyoupeptides.com
C
$50.0$2.50 /mg
9% below the 20 mg middle price
Site says it tests; no certificate could be found
View Cortagen lejianbiotechpeptides.com
C
$50.0$2.50 /mg
9% below the 20 mg middle price
No testing claim and no certificate found
View Cortagen mjapeptides.com
C
$50.0$2.50 /mg
9% below the 20 mg middle price
No testing claim and no certificate found
View Cortagen zlpeptides.com
C
$55.0$2.75 /mg
level with the 20 mg middle price
No testing claim and no certificate found
View Cortagen purapeptides.com
C
$59.0$2.95 /mg
7% above the 20 mg middle price
Site says it tests; no certificate could be found
View Cortagen limitlesslifenootropics.st
C
$60.0$3.00 /mg
9% above the 20 mg middle price
Site says it tests; the certificates sit behind a login or a bot wall and none could be read
View Cortagen atomiklabz.com
C
$60.0$3.00 /mg
9% above the 20 mg middle price
Site says it tests; no certificate could be found
View Cortagen canlabintl.com
C
$60.0$3.00 /mg
9% above the 20 mg middle price
Site says it tests; the certificates sit behind a login or a bot wall and none could be read
View Cortagen solutionpeptides.net
C
$65.0$3.25 /mg
18% above the 20 mg middle price
Site says it tests; no certificate could be found
View Cortagen ariespeptideresearch.com
C
$65.0$3.25 /mg
18% above the 20 mg middle price
Site says it tests; the certificates sit behind a login or a bot wall and none could be read
View Cortagen peptidesciencellc.com
C
$65.0$3.25 /mg
18% above the 20 mg middle price
Site says it tests; no certificate could be found
View Cortagen usa-peptidesciences.com
C
$80.0$4.00 /mg
45% above the 20 mg middle price
Site says it tests; no certificate could be found
View Cortagen purepeptidefactory.com
30 of 30 listings at 20 mg, sorted grade first, then price per mg.
Week by week
Cortagen 20 mg was first read on 2026-09-30. Middle price $2.75 per milligram across 29 sellers. A week-by-week line appears after the next finished weekly walk. One week is a snapshot, not a history.
The figure is the same ungated market median the range on this page uses: every seller found. Certificate tier still ranks the cards. The purity gate is written and off, so this is not a tested-sellers-only series.
We never charge for knowledge. No vendor has a say in what a page says. Sellers are ranked by the certificate they publish, then by price. Every size of Cortagen · Laboratories named