Hormone & HPG-axis research peptides

About this category

They are grouped together because the published protocols share a structure — a defined upstream stimulus followed by measurement of a downstream hormone response — rather than because the molecules resemble each other. Receptor targets differ completely across the group.

Every kit is released against an independent certificate stating HPLC main-peak purity and mass-spectrometry identity, with the lot number printed on the vial cap.

• ·Gonadotropin, kisspeptin-class and neurohypophyseal sequences
• ·Independent purity and identity verification per lot
• ·Lot-matched vials so upstream/downstream runs stay comparable
• ·Tracked EU courier from our Spanish hub

Upstream stimulus, downstream readout

Endocrine-axis protocols share a structure regardless of which compound they use: a defined upstream stimulus, then measurement of a downstream hormone response. Gonadotropin-receptor agonists, hypothalamic decapeptides upstream of the HPG axis, and neurohypophyseal nonapeptides each occupy a different point in that chain — which is why they are grouped and studied as a set rather than substituted for one another.

Receptor targets differ completely across the group — KISS1R, gonadotropin receptors, vasopressin/oxytocin-family receptors — and product pages state the target and the model type behind each reported observation.

Identity checks, not just purity

Because axis work depends on the compound being exactly what the label says, identity confirmation matters as much as purity here. Every kit is released against an independent certificate pairing HPLC main-peak purity with mass-spectrometry molecular-weight confirmation, and the lot number printed on the vial cap cross-references to the report.

Lyophilised vials ship in temperature-buffered mailers on a tracked service, with the same 5–18-business-day delivery window from active tracking as the rest of the catalogue.

Frequently asked questions