Cluster · Research-use only
Research-chemical peptides
Peptides sold "for research use only", Selank, Semax, DSIP, KPV, LL-37 and similar. The label is a legal workaround, not a quality certification: there is no clinical dosing standard, no manufacturing oversight, and no human safety data behind the products being sold. Importing or using them sits in a legal grey area in the UK, US, EU and elsewhere. We profile them because people are taking them; we do not endorse use.
!Legality varies by country and is shifting. Check our /legality tool for current status before doing anything.
CCCDDD
Kisspeptin
The brain's master switch for the reproductive hormone axis; studied at Imperial College for IVF and low sexual desire, but not an approved medicine.
Selank
Anxiolytic peptide studied mainly in Russia; limited Western data.
Semax
Nootropic/neuroprotective peptide; Russian studies, sparse global trials.
DSIP
Delta sleep-inducing peptide; intriguing name, weak human evidence.
KPV
Anti-inflammatory tripeptide; promising preclinical gut data.
LL-37
Antimicrobial peptide; early research, handle claims with caution.
Cluster assignment reflects each peptide’s primary intent, its main reason for being on the site. Some peptides span clusters in practice (tesamorelin is approved for HIV-associated visceral fat but is also chased by bodybuilders); we file each under one canonical cluster and link out where the cross-over matters.