PE 22-28 vs Selank + Semax
Which should you choose? Here's what you need to know.
The short answer
PE 22-28 and Selank + Semax are both cognitive / neuro peptides, but they work differently. A nootropic stack combining the anxiolytic effects of Selank with the cognitive enhancement of Semax. A popular combination in the peptide community. Compare vendor pricing and availability below.
On 17 Sep 2026 Peptide Compare tracked 20 vendors selling PE 22-28, cheapest in stock $3.46 per mg at Polaris Peptides, and 10 selling Selank + Semax, cheapest $5.00 per mg at AMC Essentials.
PE 22-28
Cognitive / NeuroSelank + Semax
Cognitive / NeuroA nootropic stack combining the anxiolytic effects of Selank with the cognitive enhancement of Semax. A popular combination in the peptide community.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 17, 2026.
PE 22-28
Selank + Semax
$39.99
Starting from
$40.00
$6.20
Avg. price per mg
$37.12
20
Vendors selling it
10
18 options
In stock now
9 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.
Some outbound links may earn us a commission. Vendors cannot pay to improve rankings.
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.