Which should you choose? Here's what you need to know.
DSIP and PE 22-28 are both cognitive / neuro peptides, but they work differently. Delta Sleep-Inducing Peptide, a neuropeptide studied for its role in sleep regulation, stress response, and circadian rhythm modulation. Compare vendor pricing and availability below.
Delta Sleep-Inducing Peptide, a neuropeptide studied for its role in sleep regulation, stress response, and circadian rhythm modulation.
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options.
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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.