Adamax vs Semax
Which should you choose? Here's what you need to know.
The short answer
Adamax and Semax are both cognitive / neuro peptides, but they work differently. A nootropic peptide sold for focus and memory. Little published research exists — treat vendor claims with caution. A synthetic peptide derived from ACTH (4-10) developed in Russia as a nootropic and neuroprotective agent. Available as a prescription nasal spray in Russia. Compare vendor pricing and availability below.
On 20 Sep 2026 Peptide Compare tracked 22 vendors selling Adamax, cheapest in stock $6.00 per mg at Eros Peptides, and 58 selling Semax, cheapest $2.12 per mg at Biotech Peptides.
Adamax
Cognitive / NeuroA nootropic peptide sold for focus and memory. Little published research exists — treat vendor claims with caution.
Semax
Cognitive / NeuroA synthetic peptide derived from ACTH (4-10) developed in Russia as a nootropic and neuroprotective agent. Available as a prescription nasal spray in Russia.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 20, 2026.
Adamax
Semax
$40.00
Starting from
$20.00
$35.73
Avg. price per mg
$4.76
22
Vendors selling it
58
23 options
In stock now
58 options
9.0/10
Top trust score
9.1/10
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Where does this data come from?
We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.