Research Deep Dives

Tirzepatide is a first-in-class dual agonist that simultaneously activates both glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptors. This dual mechanism tr...

Semaglutide controls appetite through dual gut-brain axis pathways: peripheral GLP-1 receptors on vagal afferent neurons transmit satiety signals to the brainstem, while central GLP-1 receptors in the...

Lyophilized BPC-157 is highly stable when stored at -20°C, maintaining integrity for years. Once reconstituted in bacteriostatic water (BAC water), BPC-157 should be refrigerated at 2-8°C and used wit...

Ipamorelin selectively activates the growth hormone secretagogue receptor type 1a (GHS-R1a) to stimulate pituitary growth hormone release without the off-target effects of other GHRPs. Upon binding GH...

MOTS-c is a 16-amino acid peptide encoded within the mitochondrial genome's 12S rRNA gene, representing a novel class of 'mitokines'—signaling molecules derived from mitochondrial DNA. Upon cellular s...

BPC-157 promotes tissue healing primarily through potent angiogenic activity—the formation of new blood vessels. It significantly upregulates VEGF (vascular endothelial growth factor) expression, stim...

FOXO4-DRI is a D-retro-inverso peptide that selectively kills senescent cells by disrupting the protective FOXO4-p53 interaction. In senescent cells, FOXO4 binds and sequesters p53, preventing it from...

GHK-Cu (glycyl-L-histidyl-L-lysine:copper(II)) is a naturally occurring tripeptide-copper complex that acts as a master regulator of tissue remodeling. The peptide binds copper with high affinity, for...

Semax enhances cognitive function primarily through upregulation of BDNF (brain-derived neurotrophic factor) and activation of TrkB receptor signaling in the brain. This ACTH(4-10) analog increases BD...

TB-500 is a synthetic peptide derived from the active domain of Thymosin Beta-4 (Tβ4), specifically the actin-binding WH2 motif (residues 17–23, sequence Ac-LKKTETQ). Tβ4 is the most abundant actin-se...

Epithalon (also spelled Epitalon; sequence Ala-Glu-Asp-Gly; molecular formula C₁₄H₂₂N₄O₉) is a synthetic tetrapeptide modeled on epithalamin, a polypeptide extract of the bovine pineal gland. Research...

Retatrutide (LY3437943) is a once-weekly injectable peptide that simultaneously activates three metabolic hormone receptors: GLP-1R (glucagon-like peptide-1 receptor), GIPR (glucose-dependent insulino...

Sermorelin is a synthetic 29-amino acid peptide corresponding to the N-terminal fragment of human growth hormone-releasing hormone (GHRH 1-44). It binds the GHRH receptor (GHRHR) on somatotroph cells ...

Thymosin Alpha-1 (Tα1) is a 28-amino acid thymic peptide (derived by proteolytic cleavage of prothymosin alpha) that functions as a broad immunomodulatory signal, primarily by activating dendritic cel...

CJC-1295 (GRF[1-29]-C8 with Drug Affinity Complex) extends the 7–10 minute plasma half-life of native GHRH 1-29 to 6–8 days by incorporating a maleimido-propionic acid (MPA) linker at the C-terminus t...

PT-141 (bremelanotide; Vyleesi®) is a cyclic heptapeptide melanocortin receptor agonist that activates MC1R, MC3R, and MC4R receptors in the central nervous system and peripheral tissues. Unlike PDE5 ...

IGF-1 LR3 (Long-R3 Insulin-Like Growth Factor-1) is a synthetic 83-amino acid analog of human IGF-1 modified at two positions: an Arg substitution at position 3 (replacing Glu3) and a 13-amino acid N-...

LL-37 is the sole human member of the cathelicidin antimicrobial peptide (AMP) family, produced by proteolytic cleavage of the 18 kDa precursor hCAP18 (encoded by the CAMP gene) by serine proteases in...

Kisspeptin is a family of hypothalamic neuropeptides (kisspeptin-54, -14, -13, -10) encoded by the KISS1 gene and processed from a 145-amino acid precursor. All kisspeptin isoforms share a C-terminal ...