Hormone Signaling Research Peptides

This category collects research peptides studied for their activity at the receptors and feedback loops of the endocrine system, with particular emphasis on growth-hormone secretagogue signaling and hypothalamic-pituitary axis regulation in laboratory models. All items are intended for in-vitro and preclinical laboratory research; they are not for human or veterinary use.

Sermorelin (GHRH 1-29) is a growth-hormone-releasing hormone analogue investigated for its binding at the GHRH receptor in pituitary cell models, and Tesamorelin is a stabilised analogue of the same sequence studied in comparable preclinical systems. Ipamorelin is examined as a selective GHS-R1a receptor ligand, and the CJC-1295 and Ipamorelin blend is used in research that pairs an analogue with a secretagogue to observe pulsatile signaling in vitro. Kisspeptin-10 is investigated for its role in KISS1R-mediated regulation of gonadotropin-releasing hormone neurons, while IGF-1 LR3 is studied as a long-arginine variant with reduced binding-protein affinity in cell-culture work. Epitalon rounds out the collection for researchers examining pineal regulatory signaling.

Alongside the secretagogues, the category lists gonadotropin-class and receptor-modulating reference materials used in laboratory studies of steroidogenic feedback. These are stocked purely as characterized reference compounds for bench investigation, and no listing on this site describes preparation, handling or any application involving people or animals.

What researchers study in this category

Published work in this field focuses on receptor binding affinity, downstream cAMP and phosphorylation cascades, the pulsatility of signaling in pituitary and hypothalamic cell lines, and the comparative stability of analogues in plasma-mimicking buffers. Peptides are supplied lyophilized so that a research team can reconstitute them at a concentration appropriate to its own assay design.

Every vial ships from the United States and is manufactured to a minimum 99% HPLC purity specification. Batch certificates of analysis (COAs) are published on many product pages, with chromatograms and mass-spectrometry data that let a laboratory verify identity and purity on receipt. Products sold here are not drugs, have not been approved for any diagnostic or clinical application, and are offered only to researchers working in a controlled laboratory environment.