Category: Blogs

Quick answer: Semax is a synthetic seven-amino-acid peptide derived from a short fragment of adrenocorticotropic hormone (ACTH), with a C-terminal Pro-Gly-Pro extension (stabilizing tail) that increases resistance to enzymatic degradation. The published research characterizes it mostly in brain-derived neurotrophic factor (BDNF) signaling and cerebrovascular models, and it is one of the most heavily studied compounds

Quick answer: Sermorelin, tesamorelin, and ipamorelin are three short peptides that all end up in growth-hormone-axis research, but they don’t act through the same receptor. Sermorelin and tesamorelin are growth-hormone-releasing hormone (GHRH) analogs. Ipamorelin is a growth-hormone-releasing peptide (GHRP) that acts through the ghrelin receptor. Tesamorelin is the only one of the three that is

Quick answer: Melanotan 2 (MT-2) is a synthetic cyclic peptide that acts as a broad agonist of melanocortin receptors, the receptor family involved in pigmentation and several other pathways. It is not approved for any use by any regulator, a status worth stating up front. In research it is studied for melanocortin-receptor pharmacology and pigmentation

Quick answer: Bacterial endotoxin is a contaminant from the outer membrane of Gram-negative bacteria that can distort cell-based and immunological experiments even at very low levels. Bacterial endotoxin testing traditionally uses the Limulus amebocyte lysate (LAL) based method as the standard way to measure it, with recombinant methods now also available. A low endotoxin result

Quick answer: KPV is a tripeptide, lysine-proline-valine, that corresponds to the C-terminal three residues of alpha-melanocyte-stimulating hormone (alpha-MSH). It is studied primarily as an anti-inflammatory peptide. It is not FDA-approved for any use, and Velora supplies it as one component of the KLOW research blend for in vitro, ex vivo, and in silico work only.

Quick answer: Lyophilization, or freeze-drying, removes water from a peptide by freezing it and then pulling the ice off as vapor under vacuum, leaving a dry powder. Peptides are often lyophilized because reducing water content can slow many chemical and physical degradation processes, improving stability for appropriately formulated products. Understanding why a peptide is lyophilized