KISS

KISS is presented here as a laboratory catalogue entry for research environments that need clear identification, labelled variants, and direct access to supporting records. The current listing includes 1 labelled variant: 10mg. That structure keeps the page useful as both a procurement reference and an indexable resource covering stock visibility, pricing context, and documentation.

Within the wider Au Peptide Labs catalogue, KISS sits alongside Tesamorelin, Retatrutide, and Ipamorelin. Researchers often review neighbouring compounds before selecting a comparator or deciding which sequence belongs in a screening panel. Keeping those internal paths close to the product page improves traceability and helps laboratory buyers compare materials without relying on vague or consumer-style copy.

In research literature, KISS is generally treated as a neuropeptide-class research material studied in receptor binding, neuroendocrine signalling, and exploratory CNS-pathway assay models. This class spans diverse receptor systems and signalling mechanisms. Semax (ACTH 4–7 extended: Met-Glu-His-Phe-Pro-Gly-Pro) does not bind canonical ACTH receptors but has been studied for BDNF upregulation, dopaminergic/serotonergic modulation, and neuroprotection-related gene expression in neuronal cell models. Selank (a tuftsin analog: Thr-Lys-Pro-Arg-Pro-Gly-Pro) modulates GABA-A receptor activity, increases BDNF expression, and shows anxiolytic-like readouts in behavioural assay models; its mechanism may involve enkephalin-degrading enzyme inhibition. DSIP (delta-sleep-inducing peptide) is a nonapeptide studied in neuroendocrine LH and GH pulse modulation assays. Oxytocin (Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH₂) acts at the oxytocin receptor (OXT-R), a class A GPCR coupling via Gq/Go, to activate PLC-IP3-PKC signalling relevant to social behaviour and stress-axis research. KISS (kisspeptin-10: FNYNLNSFGLRY-NH₂) binds Kiss1R/GPR54, a Gq/11-coupled receptor, stimulating phosphatidylinositol signalling central to GnRH axis studies. VIP (vasoactive intestinal peptide) acts at VPAC1 and VPAC2 receptors, class B GPCRs signalling via Gs-cAMP, relevant to neuroimmune and circadian rhythm assay models.

Selectivity controls are especially important in neuropeptide assays because several members (semax, DSIP, selank) do not have definitively assigned receptor targets, and observed effects may be indirect. Comparator panels paired with receptor-selective antagonists and negative controls help distinguish receptor-mediated from non-receptor-mediated readouts. For laboratory teams, the practical emphasis is usually on sequence identity, receptor or pathway relevance where documented, and whether KISS behaves consistently across stability, purity, and analytical verification workflows. Variant labels on this page support clearer internal referencing when multiple labelled variants are under review.

If a product-specific file is not attached to this listing, the wider COA library remains the correct reference point for current published documentation. The COA section is useful for confirming how the product is labelled in the catalogue, whether purity information has been published, and whether the laboratory record for the material is complete before bench use.

When teams compare KISS with Tesamorelin, Retatrutide, and Ipamorelin, COA access also helps keep comparator decisions grounded in documented material identity rather than assumption. That is especially important for research pages that combine pricing, variant selection, and analytical records on a single URL.