DSIP vs Selank
Which should you choose? Here's what you need to know.
The short answer
DSIP is specifically a sleep peptide that promotes deeper delta-wave sleep. Selank is an anti-anxiety peptide that can help with sleep indirectly by reducing the anxiety that keeps you awake.
DSIP
Cognitive / NeuroDSIP (Delta Sleep-Inducing Peptide) specifically promotes slow-wave delta sleep — the deep, restorative phase your body uses for physical recovery. It helps you fall asleep faster and sleep more efficiently.
Choose DSIP if:
Your primary problem is sleep quality — you need deeper, more restorative sleep regardless of anxiety levels.
Selank
Cognitive / NeuroSelank is an anxiolytic peptide that reduces anxiety through GABA and serotonin modulation. While not a sleep drug, it can improve sleep quality by calming the racing thoughts that prevent rest.
Choose Selank if:
Your sleep issues stem from anxiety or an overactive mind at bedtime, and you also want daytime anxiety relief.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options.
DSIP
Selank
$23.00
Starting from
$19.00
$9.44
Avg. price per mg
$10.38
52
Vendors selling it
61
48 options
In stock now
70 options
9.1/10
Top trust score
9.1/10
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.