Peptide Glossary A–Z

A selective inhibitor of Nicotinamide N-methyltransferase (NNMT), an enzyme linked to fat cell metabolism and energy expenditure. Currently under investigation for metabolic research applications.

Sterile water containing 0.9% benzyl alcohol. The standard solvent for reconstituting lyophilised research peptides. The benzyl alcohol acts as a bacteriostatic agent, preserving the solution.

Body Protection Compound-157 (BPC-157) is a 15 amino acid synthetic peptide derived from a naturally occurring gastric protein. Molecular formula: C₆₂H₁₀₀N₁₆O₂₂. MW: 1419.53 g/mol. Extensively studied for regenerative properties in vitro.

A synthetic analogue of Growth Hormone Releasing Hormone (GHRH). CJC-1295 without DAC (Drug Affinity Complex) has a shorter half-life than the DAC variant, making it subject to distinct research protocols.

A document from an independent testing laboratory confirming the identity, purity, and composition of a research compound. At Nexyra Lab, all products ship with batch-specific COA from HPLC testing.

Current Good Manufacturing Practice. A set of regulations enforced to ensure products are produced and controlled according to quality standards. cGMP-certified manufacturing is the pharmaceutical industry benchmark.

Glycyl-L-histidyl-L-lysine (GHK) copper complex. A naturally occurring tripeptide found in human plasma, urine, and saliva. Extensively researched for wound healing, collagen synthesis, and antioxidant activity.

Glucagon-Like Peptide-1. An incretin hormone that stimulates insulin secretion and inhibits glucagon. GLP-1 receptor agonism is the mechanism of semaglutide, tirzepatide, and retatrutide among others.

Growth Hormone Releasing Peptide. A class of peptides that stimulate release of growth hormone from the pituitary gland. Ipamorelin is an example of a selective GHRP.

A glycoprotein hormone produced during pregnancy and studied for its role in gonadal function and steroidogenesis research. Available in research-grade lyophilised form.

A research peptide related to Human Growth Hormone (HGH) function. Used in research investigating growth hormone axis physiology.

High-Performance Liquid Chromatography. The gold-standard analytical technique for verifying peptide purity. A sample is pumped through a column, separating compounds by their interaction with the stationary phase, producing a chromatogram that quantifies purity as a percentage.

A selective growth hormone secretagogue and GHRP. Ipamorelin stimulates GH release with minimal effect on cortisol or prolactin, making it a subject of interest in selectivity research. MW: 711.868 g/mol.

Lys-Pro-Val. A C-terminal tripeptide fragment of alpha-MSH (alpha-melanocyte stimulating hormone). Studied for anti-inflammatory properties in gastrointestinal and skin tissue research.

Freeze-drying. The process of removing water from a product by freezing it, then reducing surrounding pressure to allow the frozen water to sublimate. Lyophilised peptides are stable at low temperatures for extended periods.

Mitochondrial-derived Peptide. Encoded within the mitochondrial genome, MOTS-c is studied for its roles in metabolic regulation, exercise physiology, and longevity research. MW: 2174.5 g/mol.

Nicotinamide Adenine Dinucleotide. A critical coenzyme in cellular metabolism involved in redox reactions and energy production. Widely studied as a longevity and neuroprotection target. Levels decline with age.

A novel GLP-1/GIP/GcG (triple) receptor agonist under Phase III clinical investigation. Unlike dual agonists (GLP-1+GIP), retatrutide adds glucagon receptor activity, representing the next generation of metabolic receptor research.

A synthetic analogue of the immunomodulatory peptide Tuftsin (Thr-Lys-Pro-Arg). Developed in Russia, Selank is studied for anxiolytic and nootropic properties in neuropharmacological research.

A synthetic ACTH(4-7) analogue. Semax is studied for neuroprotective, nootropic, and cognitive-enhancing properties. Developed by the Institute of Molecular Genetics in Russia.

A synthetic form of Thymosin Beta-4 (Tβ4), a naturally occurring protein found in high concentrations in blood platelets. Studied for cell proliferation, migration, and tissue repair mechanisms. MW: ~4963 Da.

A synthetic analogue of Growth Hormone Releasing Hormone (GHRH) with a trans-3-hexenoic acid modification for enhanced stability. Approved by the FDA for HIV-associated lipodystrophy; also studied for GH axis research.