P21 vs Selank
Which should you choose? Here's what you need to know.
The short answer
P21 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.
P21
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.
P21
Selank
$61.98
Starting from
$19.00
$15.22
Avg. price per mg
$15.43
9
Vendors selling it
63
6 options
In stock now
73 options
9.0/10
Top trust score
9.1/10
0
Purity tests on file
0
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.
Best P21 Vendor
7.0/10
$198.00(10mg)
Best Selank Vendor
9.0/10
$43.00(10mg)
Where does this data come from?
We check vendor prices every day and pull in real purity test results from independent labs — not vendor claims. No vendor can pay to rank higher. See our full methodology.