Peptide glossary.

Tirzepatide is a synthetic 39-residue peptide engineered to co-activate the GIP and GLP-1 receptors, with C20 fatty-diacid acylation for an extended pharmacokinetic profile. It is a reference compound in dual-incretin signaling research.

Retatrutide is a synthetic 39-residue peptide engineered to co-activate the GLP-1, GIP, and glucagon receptors, with C20 fatty-diacid acylation for extended plasma stability. It is a reference compound in pre-clinical incretin and metabolic-signaling research.

Semaglutide is a 31-residue GLP-1 receptor agonist analog with a C18 fatty-acid acylation that extends plasma half-life. It is one of the most heavily characterized reference compounds in GLP-1 receptor pharmacology.

Long-acting amylin analog for metabolic and satiety research.

Small-molecule NNMT inhibitor for metabolic and adipose research.

BPC-157 is a synthetic 15-residue peptide derived from a sequence in human gastric juice protein. It is among the most-referenced tool compounds in pre-clinical angiogenesis, fibroblast-migration, and gut-mucosa research, noted for stability in aqueous and acidic conditions.

TB-500 corresponds to thymosin β-4, a 43-residue actin-sequestering peptide. It is a widely-used reference compound in actin-dynamics, angiogenesis, and cell-migration research.

Thymosin α-1 is a 28-residue N-acetylated peptide cleaved from prothymosin alpha. It is a reference tool compound in T-cell maturation and innate-immune signaling research.

Four-peptide KLOW blend (BPC-157, GHK-Cu, TB-500, KPV) for recovery research.

Combined BPC-157 and TB-500 blend for tissue-repair research.

Tri-peptide GLOW blend (BPC-157, GHK-Cu, TB-500) for recovery and skin research.

α-MSH-derived tripeptide for inflammation and gut research.

Ipamorelin is a synthetic pentapeptide and selective agonist of the ghrelin receptor (GHS-R1a). It is valued as a clean reference compound for pulsatile somatotropic-axis research with minimal off-target activity.

CJC-1295 DAC is a synthetic GHRH-analog peptide conjugated to a drug-affinity complex (DAC) that binds serum albumin, extending plasma stability from minutes to days. It is a sustained-release reference compound in somatotropic-axis signaling research.

Growth-hormone-releasing hexapeptide for somatotropic research.

Growth-hormone-releasing peptide for somatotropic research.

CJC-1295 (no DAC) and Ipamorelin blend for somatotropic research.

KISS1-derived decapeptide for reproductive-axis research.

Tesamorelin — a stabilized growth-hormone-releasing hormone (GHRH) analog for somatotropic-axis research. For Research Use Only — not for human consumption.

GHK-Cu is a naturally occurring tripeptide (Gly-His-Lys) complexed with copper(II). It is a cornerstone reference compound in extracellular-matrix gene-expression and dermal-fibroblast research.

α-MSH analog for pigmentation research; more MC1R-selective than Melanotan-2.

Melanocortin-receptor agonist for pigmentation research.

Tripeptide antioxidant for oxidative-stress and skin research.

Type-A neurotoxin complex for neuromuscular research.

Epitalon is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) modeled on the pineal peptide epithalamin. It is a widely-referenced tool compound in telomere-biology and pineal-axis research.

MOTS-c is a 16-residue peptide encoded by the mitochondrial 12S rRNA region. It is the headline reference compound for mitochondrial-derived-peptide and AMPK-pathway signaling research.

Nicotinamide adenine dinucleotide coenzyme for cellular-energy and metabolic research.

Mitochondria-targeted peptide (elamipretide) for cellular-energy research.

Thymic peptide complex studied for immune and healthspan research.

Semax is a synthetic heptapeptide analog of the ACTH(4-10) fragment, modified with a Pro-Gly-Pro tail for stability. It is a reference compound in neurotrophic-factor expression and neuropeptide signaling research.

Selank is a synthetic heptapeptide analog of the immunopeptide tuftsin, with a stabilizing Pro-Gly-Pro extension. It is a reference tool compound in GABAergic and neuropeptide signaling research.

Delta-sleep-inducing peptide for sleep and stress research.