PE 22-28 vs Selank
Which should you choose? Here's what you need to know.
The short answer
PE 22-28 and Selank are both cognitive / neuro peptides, but they work differently. A synthetic analog of the immunomodulatory peptide tuftsin, developed in Russia for its anxiolytic and nootropic properties. Compare vendor pricing and availability below.
On 10 Oct 2026 Peptide Compare tracked 20 vendors selling PE 22-28, cheapest in stock $3.46 per mg at Polaris Peptides, and 56 selling Selank, cheapest $1.63 per mg at Bio Pepz.
PE 22-28
Cognitive / NeuroSelank
Cognitive / NeuroA synthetic analog of the immunomodulatory peptide tuftsin, developed in Russia for its anxiolytic and nootropic properties.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Oct 10, 2026.
PE 22-28
Selank
$39.99
Starting from
$15.00
$6.22
Avg. price per mg
$13.25
20
Vendors selling it
56
18 options
In stock now
64 options
8.7/10
Top trust score
9.1/10
Ready to buy?
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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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.