What Is DSIP? Delta Sleep-Inducing Peptide Research Explained
Delta Sleep-Inducing Peptide (DSIP) is a neuropeptide first isolated from rabbit cerebral venous blood in 1974 by the Schoenenberger-Monnier group at the University of Basel. The researchers were seeking a transferable sleep factor — a substance that could be isolated from sleeping donors and induce sleep in recipient animals — and found that infusion of […]
What Is Tesamorelin? GHRH Analog Research Explained
Tesamorelin research occupies a unique position among growth hormone-releasing hormone (GHRH) analogs: it is the only compound in this class to have received U.S. Food and Drug Administration (FDA) approval, granted in 2010 under the brand name Egrifta® for the reduction of excess visceral adipose tissue (VAT) in adults with HIV-associated lipodystrophy. This regulatory milestone, […]
What Is Melanotan-2? Melanocortin Agonist Research Explained
Melanotan II (MT-II) is a cyclic synthetic analog of alpha-melanocyte-stimulating hormone (α-MSH), developed at the University of Arizona in the 1980s and 1990s by researchers seeking to understand the melanocortin receptor system and its potential therapeutic applications. Unlike its linear counterpart Melanotan I (afamelanotide), Melanotan II is a non-selective, pan-melanocortin receptor agonist — it binds […]
Research Peptide Storage and Handling: A Laboratory Best Practices Guide
Introduction Peptide storage and handling is a prerequisite for experimental integrity and reproducibility. When research peptides degrade prior to use, even the most rigorously designed study yields unreliable data — making proper storage and handling not a best practice but a scientific necessity. Temperature fluctuations, moisture exposure, inappropriate solvents, and repeated freeze-thaw cycles are among […]
What Is Semax? ACTH(4-10) Analog Nootropic Research Explained
Semax is a synthetic heptapeptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences, designed as a stable, CNS-active analog of the ACTH(4-10) fragment — itself a short segment of adrenocorticotropic hormone known to influence learning and memory in rodent models. Semax (Met-Glu-His-Phe-Pro-Gly-Pro, or MEHFPGP) strips away the steroidogenic activity of […]
What Is TB-500? Thymosin Beta-4 Fragment Research Explained
TB-500 explained: thymosin beta-4 identity, the LKKTETQ actin motif, and 2025 cardiac, fibrosis, and neurovascular research. Research use only.
What Is GHK-Cu? The Copper Peptide Research Overview
What GHK-Cu is, how the copper complex is built, and what the copper peptide is studied for in matrix, wound, and gene-expression research. Research use only.
GLP-1 Receptor Agonist Peptides: The 2026 Research Landscape
How GLP-1 receptor agonist research stands in 2026: receptor architecture, signaling bias, acylation chemistry, and multi-receptor designs. Research use only.
What Is BPC-157? Body Protection Compound Research Explained (2026 Update)
A 2026 update on BPC-157: sequence, polyproline stability, four preclinical research domains and an unresolved mechanism. Research use only.
Growth Hormone Peptides: What Sermorelin, Ipamorelin, and Tesamorelin Are—and How They Work
This article is provided for educational and scientific discussion about peptides and endocrine physiology. It is not medical advice, and it does not recommend or instruct human use. Many compounds discussed here are investigated in research settings; tesamorelin is a notable exception with an FDA-approved prescription indication for a specific condition (covered below). (accessdata.fda.gov) Table […]