Reference
Peptide Glossary
Plain-language definitions for the peptides, receptors, and research concepts referenced across our knowledge base. Linked inline throughout every article.
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A
- Amino AcidResearch Concept
The organic compounds that serve as the fundamental building blocks of all peptides and proteins in the body.
- AOD-9604Peptide
A modified fragment of the human growth hormone C-terminus, studied specifically for its fat-reducing properties without affecting blood sugar or growth.
B
- Bacteriostatic WaterDelivery/Form
Sterile water containing 0.9% benzyl alcohol as a preservative, used to reconstitute lyophilized peptides for multi-use preparations.
- BioregulatorResearch Concept
A class of small peptides that modulate gene expression and protein synthesis to normalize and restore physiological function in specific organs or tissues.
- BPC-157Peptide
A synthetic peptide composed of 15 amino acids, studied for its regenerative and cytoprotective effects across various biological systems and tissue types.
C
- CagrilintidePeptide
A long-acting amylin analogue peptide investigated for its effects on weight management through appetite suppression and slowing gastric emptying.
- CerebrolysinPeptide
A mixture of neuropeptides and free amino acids derived from purified porcine brain, studied for its neuroprotective and neurotrophic properties.
- CJC-1295Peptide
A synthetic analogue of Growth Hormone-Releasing Hormone (GHRH) designed to increase plasma growth hormone levels with an extended half-life.
D
E
F
G
- GHK-CuPeptide
A naturally occurring copper peptide complex renowned for its role in skin remodeling, collagen production, and broad anti-inflammatory and antioxidant effects.
- Ghrelin MimeticMechanism
A compound that mimics the action of ghrelin, the 'hunger hormone,' by binding to and activating the ghrelin receptor (GHSR).
- GHRHHormone
A hormone produced in the hypothalamus that stimulates the synthesis and release of growth hormone from the anterior pituitary gland.
- GHRP-2Peptide
A synthetic a Growth Hormone Releasing Peptide that acts as a potent secretagogue, stimulating the pituitary to release growth hormone.
- GHRP-6Peptide
A first-generation Growth Hormone Releasing Peptide that strongly stimulates growth hormone release and is known for significantly increasing appetite.
- GIPHormone
An incretin hormone that stimulates insulin release from the pancreas in response to nutrient intake, playing a key role in metabolic regulation.
- GLP-1 Receptor AgonistMechanism
A class of research compounds that mimic the hormone GLP-1, activating its receptor to improve glycemic control and promote satiety.
- GlutathionePeptide
A powerful tripeptide antioxidant naturally produced in the body, essential for protecting cells from oxidative stress and maintaining immune function.
- Growth Hormone SecretagogueMechanism
A substance that stimulates the pituitary gland to secrete endogenous growth hormone, acting via various biological pathways.
H
- Half-lifeResearch Concept
The time it takes for the concentration of a substance, such as a peptide, in the body to be reduced by half.
- HexarelinPeptide
A potent, synthetic hexapeptide that is a member of the growth hormone secretagogue family, known for causing a strong release of growth hormone.
- HypothalamusResearch Concept
A region of the brain that links the nervous system to the endocrine system via the pituitary gland, controlling body temperature, hunger, and thirst.
I
- IGF-1Hormone
A hormone structurally similar to insulin that is a primary mediator of the anabolic and growth-promoting effects of growth hormone.
- IpamorelinPeptide
A selective Growth Hormone Secretagogue and ghrelin mimetic that stimulates the pituitary gland to release growth hormone with minimal side effects.
K
L
- LL-37Peptide
A human host-defense peptide (antimicrobial peptide) with broad-spectrum antimicrobial, anti-inflammatory, and wound-healing activities.
- LyophilizedDelivery/Form
The stable, freeze-dried powder form in which most research peptides are shipped and stored to ensure long-term integrity and potency.
M
- Melanotan IIPeptide
A synthetic analogue of alpha-Melanocyte Stimulating Hormone (α-MSH) that stimulates tanning, and is also studied for its effects on libido and appetite.
- Mitochondrial PeptideResearch Concept
A class of peptides encoded by the mitochondrial genome that act as signaling molecules to regulate cellular metabolism and stress responses.
- MK-677Research Concept
An orally active, non-peptide Growth Hormone Secretagogue and ghrelin mimetic that increases GH and IGF-1 levels for extended periods.
- MOTS-cPeptide
A mitochondrial-derived peptide investigated for its role in metabolism, insulin sensitivity, cellular energy regulation, and exercise capacity.
N
P
- Peptide BondResearch Concept
The covalent chemical bond that links two amino acid molecules together, forming the primary structure of all peptides and proteins.
- Pituitary GlandResearch Concept
A small, pea-sized endocrine gland at the base of the brain that secretes hormones controlling growth, metabolism, and many other bodily functions.
- PT-141Peptide
A synthetic peptide analogue of alpha-MSH that acts on melanocortin receptors in the central nervous system, studied for its libido-enhancing effects.
R
- Receptor AgonistMechanism
A molecule that binds to and activates a cellular receptor, mimicking the action of the natural ligand and initiating a biological response.
- Receptor AntagonistMechanism
A molecule that binds to a cellular receptor but does not activate it, effectively blocking the receptor from being activated by its natural agonist.
- ReconstitutionDelivery/Form
The process of adding a sterile diluent, such as bacteriostatic water, to a lyophilized (freeze-dried) peptide to prepare it for research use.
- Research Use OnlyResearch Concept
A standard disclaimer indicating that a product, such as a research peptide, is sold strictly for in-vitro laboratory or preclinical research purposes.
- RetatrutidePeptide
A pioneering triple-agonist peptide targeting GLP-1, GIP, and glucagon receptors, explored for its potential efficacy in metabolic health and weight loss.
S
- SelankPeptide
A synthetic heptapeptide with nootropic and anxiolytic properties, studied for its effects on reducing anxiety, improving mood, and enhancing cognitive function.
- SemaglutidePeptide
A long-acting GLP-1 receptor agonist studied for its effects on glucose control, appetite suppression, and significant potential for weight management.
- SemaxPeptide
A neuropeptide fragment of ACTH studied as a potent nootropic and neuroprotective agent for enhancing cognitive function, memory, and focus.
- SermorelinPeptide
A 29-amino acid peptide analogue of GHRH that stimulates the pituitary gland to naturally produce and secrete its own growth hormone.
- Subcutaneous InjectionDelivery/Form
A method of administering research compounds by injecting them into the fatty tissue layer just beneath the skin.
T
- TB-500Peptide
A synthetic version of the naturally occurring protein Thymosin Beta-4, investigated for its role in cellular migration, differentiation, and tissue repair.
- TesamorelinPeptide
A stabilized synthetic analogue of Growth Hormone-Releasing Hormone (GHRH) primarily investigated for its ability to reduce visceral adipose tissue.
- ThymalinPeptide
A bioregulator peptide complex derived from the thymus gland, studied for its role in modulating and restoring immune system function.
- TirzepatidePeptide
A novel dual-agonist peptide that activates both GIP and GLP-1 receptors, researched for its potent effects on glycemic control and weight reduction.
