Checked October 21, 2026 · 22 vendors

Testagen for sale: prices from 22 vendors (October 2026)

Synthetic tetrapeptide (Lys-Glu-Asp-Gly) bioregulator associated with testicular tissue in Khavinson's work. Where to buy it for research: every US vendor we track that sells Testagen, cheapest per milligram first, with COA status. The lowest in-stock price this week is $1.50/mg at Bulk Peptide Supply.

Lowest per mg: $1.50; Bulk Peptide Supply
Median per mg: $3.00; 19 in stock
Cheapest with COA: —; none yet
Vendor publishes COAs: 0%; of in-stock offers

Testagen prices, cheapest per mg

▼ cheaper / ▲ dearer than last week

1
Bulk Peptide Supply4.0
Testagen 20mg
No COA
$30.00
20 mg
$1.50/mg
New
Check price
bulkpeptidesupply.com
2
Hello Stacks6.0
Testagen 20mg
No COA
$39.00
20 mg
$1.95/mg
New
Check price
hellostacks.com
3
Peptide Crafters3.5
Testagen 25mg
No COA
$55.00
25 mg
$2.20/mg
New
Check price
peptidecrafters.com
4
Amino USA4.7
Testagen 20mg
No COA
$45.00~~$50.00~~
20 mg
$2.25/mg
New
Check price
aminousa.com
5
GenX Bio1.0
Testagen 20mg
No COA
$50.00
20 mg
$2.50/mg
New
Check price
genx.bio
6
Modern Aminos5.5
Testagen 20mg
No COA
$54.00
20 mg
$2.70/mg
New
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modernaminos.com
7
Liberty Peptides3.5
Testagen 20mg
No COA
$55.00
20 mg
$2.75/mg
New
Check price
libertypeptides.com
8
Swiss Chems7.2
Testagen 20mg
No COA
$59.95
20 mg
$3.00/mg
New
Check price
swisschems.is
9
NuScience Peptides3.5
Testagen 20mg
No COA
$59.99~~$79.99~~
20 mg
$3.00/mg
New
Check price
nusciencepeptides.com
10
Modified Aminos6.5
Testagen 20mg
No COA
$59.99
20 mg
$3.00/mg
New
Check price
modifiedaminos.shop
11
American Peptides7.6
Testagen 20mg
No COA
$60.00
20 mg
$3.00/mg
New
Check price
americanpeptides.us
12
Peptide Plugs8.1
Testagen 20mg
No COA
$60.00
20 mg
$3.00/mg
New
Check price
peptideplugs.com
13
Raw Amino1.0
Testagen 20mg
No COA
$60.00
20 mg
$3.00/mg
New
Check price
rawamino.com
14
Glacier Aminos6.4
Testagen 20mg
No COA
$61.19~~$67.99~~
20 mg
$3.06/mg
New
Check price
glacieraminos.shop
15
Core Peptides6.5
Testagen 20mg
No COA
$63.00
20 mg
$3.15/mg
New
Check price
corepeptides.com
16
Atomik Labz1.0
Testagen 20mg
No COA
$75.00
20 mg
$3.75/mg
New
Check price
atomiklabzpeptides.com
17
Pura Peptides1.0
Testagen 20mg
No COA
$75.00~~$80.00~~
20 mg
$3.75/mg
New
Check price
purapeptides.com
18
BioLongevity Labs5.5
Testagen 20mg
No COA
$79.97
20 mg
$4.00/mg
New
Check price
biolongevitylabs.com
19
Peptara Labs6.5
Testagen 20mg
No COA
$95.00
20 mg
$4.75/mg
New
Check price
peptaralabs.io
–
Tydes6.0
Testagen 50mg
No COAOut of stock
$89.99
50 mg
$1.80/mg
New
Check price
tydes.is
–
Go Alpha Labs4.2
Testagen 20mg
No COAOut of stock
$44.09~~$62.99~~
20 mg
$2.20/mg
New
Check price
goalphalabs.com
–
Verified Peptides6.0
Testagen 20mg
No COAOut of stock
$55.00
20 mg
$2.75/mg
New
Check price
verifiedpeptides.com

Prices are the vendor's list price for one vial on the check date, in USD, before shipping. Ranked by price per mg; vendors that only sell multi-vial kits are listed after single-vial prices, at the per-vial price; sponsorship never changes the order. Links marked "Check price" may earn us a commission.

Testagen price history

Price history starts with our first weekly check. Each re-check adds a point here, so the chart fills in week by week.

Research use only. The compounds referenced on this page are sold for laboratory research purposes only. They are not drugs, foods, cosmetics or dietary supplements, and they are not approved by the FDA for human or veterinary use. Nothing on this page is medical advice. PeptideChecked does not sell peptides, does not provide dosing guidance, and does not recommend the use of any compound in humans.

FAQ

Testagen price questions

Where can I buy Testagen for research?

We track 19 US vendors with Testagen in stock as of October 21, 2026, listed above from cheapest per mg. Before ordering, open the vendor's review for its testing record and check that a COA exists for the exact lot. Testagen sold this way is labeled for laboratory research only.

Where is Testagen cheapest?

On October 21, 2026, the lowest Testagen price per mg among in-stock vendors was Bulk Peptide Supply at $1.50/mg ($30.00 for 20 mg).

How much does Testagen cost per mg?

The median across 19 in-stock vendors was $3.00 per mg on October 21, 2026, with a range of $1.50 to $4.75.

How often are Testagen prices checked?

Weekly. We read each Testagen price from the vendor's own product page and save every check, so each row shows the change since last week. The last check was October 21, 2026.

What does the COA badge mean on Testagen listings?

The vendor publishes certificates of analysis (lab reports) for its products on its own site. 0% of the in-stock offers above come from vendors that do. Check that a report exists for the exact product and lot you order: a COA shows what a lab measured for one batch, not a guarantee about the vial you receive.