P21 vs PE 22-28
Which should you choose? Here's what you need to know.
The short answer
P21 and PE 22-28 are both cognitive / neuro peptides, but they work differently. Compare vendor pricing and availability below.
P21
Cognitive / NeuroPE 22-28
Cognitive / NeuroPrice & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options.
P21
PE 22-28
$61.98
Starting from
$39.99
$39.07
Avg. price per mg
$6.15
8
Vendors selling it
21
4 options
In stock now
18 options
7.0/10
Top trust score
8.7/10
Ready to buy?
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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.