Peptide education
Learn about peptides
A plain-English guide to the peptide and small-molecule categories in our catalog — what each one is, in simple terms, and what it has been studied for in laboratory and clinical research. This page describes research, not medical advice: nothing here is a claim that any compound diagnoses, treats, cures or prevents a condition, and all products are sold for research use only.
Compound pages: What is KLOW? · What is MOTS-c?
First, the basics
What is a peptide?
A peptide is a short chain of amino acids — the same building blocks that make up proteins, just far fewer of them. Where a protein might be hundreds of amino acids long, most research peptides are somewhere between 3 and 40. That short length is what lets scientists make them synthetically and study them precisely: a specific sequence interacting with a specific receptor or pathway in the body.
Most of what's below is supplied as a freeze-dried (lyophilized) powder in a sealed vial, reconstituted with bacteriostatic water before use in a lab setting — see the reconstitution calculator for the math. A few compounds on this page aren't peptides at all — small molecules like NAD+ or methylene blue — but they're studied in the same categories and are grouped here the same way. Every lot we publish has a certificate of analysis; a lot still in testing shows as pending until its report is in.
Bacteriostatic Water (10 mL)
Store refrigerated (36-46F) after opening and use within the manufacturer's labeled window. Do not freeze. Discard if cloudy or discolored.
DSIP 10mg
DSIP, short for Delta Sleep-Inducing Peptide, is a small peptide made of 9 amino acids, first identified in neuroscience research in the 1970s. It is classified as a neuropeptide, a type of small signaling molecule used by the nervous system.
DSIP has been studied in laboratory research for its possible role in sleep-related brain activity and stress-response signaling pathways.
Kisspeptin-10 10mg
Kisspeptin-10 is a shorter, active fragment of the naturally occurring kisspeptin peptide, made of 10 amino acids. It belongs to a family of peptides involved in the body's reproductive hormone signaling system.
Kisspeptin-10 has been studied in reproductive endocrinology research for its role in regulating the hypothalamic-pituitary-gonadal axis, particularly how it relates to the release of gonadotropin-releasing hormone (GnRH).
PT-141 10mg
PT-141, also known by its chemical name bremelanotide, is a synthetic peptide built from 7 amino acids arranged in a ring structure. It is designed to interact with a group of receptors in the body called melanocortin receptors.
PT-141 has been studied in laboratory and clinical research for its interactions with the melanocortin receptor system and related neural signaling pathways.
Selank 10mg
Selank is a synthetic peptide developed in Russian pharmacological research, based on a naturally occurring immune peptide called tuftsin. It is a short peptide chain engineered for greater stability than the natural molecule it is based on.
Selank has been studied in laboratory research for its interactions with neurochemical signaling pathways, including research related to stress-response and behavioral research models.
Semax 10mg
Semax is a synthetic peptide developed in Russian neuropharmacological research, based on a small fragment of adrenocorticotropic hormone (ACTH). It is a short peptide chain engineered to be more stable than the natural fragment it is derived from.
Semax has been studied in laboratory research for its interactions with neurotrophic signaling pathways, including research related to BDNF (brain-derived neurotrophic factor) and cognitive-behavioral research models.
VIP 10mg
VIP, short for Vasoactive Intestinal Peptide, is a naturally occurring peptide hormone made of 28 amino acids, found throughout the nervous and digestive systems. It belongs to a family of related peptide hormones that includes secretin and glucagon.
VIP has been studied in laboratory research for its role in cellular signaling, immune system regulation, and its interactions with circadian and pulmonary research models.
CJC-1295 + Ipamorelin 10mg
CJC-1295 no DAC + Ipamorelin
This is a combination of two peptides that act on different parts of the growth hormone signaling system: CJC-1295, a GHRH receptor analog, and Ipamorelin, a ghrelin receptor-targeting peptide.
Each peptide has been studied in its own right for its role in growth hormone secretion pathways. Pairing a GHRH analog with a ghrelin receptor agonist is a common research combination because the two act on separate receptors.
Ipamorelin 10mg
Ipamorelin is a synthetic peptide made of 5 amino acids, classified as a selective ghrelin receptor agonist. It was designed to interact with a specific receptor involved in growth hormone signaling.
Ipamorelin has been studied in laboratory and clinical research for its interactions with the ghrelin receptor and its role in growth hormone secretion pathways.
Sermorelin 10mg
Sermorelin is a synthetic peptide representing the first 29 amino acids of growth hormone-releasing hormone (GHRH), the active fragment of the naturally occurring hormone.
Sermorelin has been studied in clinical and laboratory research for its interactions with the GHRH receptor and its role in regulating growth hormone secretion pathways.
Tesamorelin 10mg
Tesamorelin is a synthetic analog of growth hormone-releasing hormone (GHRH), chemically modified to be more resistant to breakdown than the natural hormone.
Tesamorelin has been studied in clinical research for its interactions with the GHRH receptor and its effects on growth hormone secretion and related metabolic signaling pathways.
Epithalon 10mg
Epithalon, also spelled Epitalon, is a synthetic tetrapeptide made of just 4 amino acids, based on a naturally occurring peptide isolated from the pineal gland.
Epithalon has been studied in laboratory research, particularly in Russian gerontology research, for its interactions with telomerase activity and cellular aging pathways in laboratory models.
GHK-Cu 50mg
GHK-Cu is a naturally occurring copper-binding tripeptide found in human plasma, made of three amino acids, glycine, histidine, and lysine, bound to a copper ion. Levels of this peptide in the body are known to decline with age.
GHK-Cu has been studied extensively in laboratory research for its role in skin biology, collagen-related cell signaling, and tissue repair-related cellular pathways.
MOTS-c 10mg
MOTS-c is a small peptide that is unusual because it is encoded by mitochondrial DNA rather than the cell's main nuclear DNA, placing it in a class known as mitochondrial-derived peptides.
MOTS-c has been studied in laboratory research for its role in cellular energy metabolism and mitochondrial signaling pathways.
NAD+ 1000mg
NAD+, or nicotinamide adenine dinucleotide, is a naturally occurring coenzyme, not a peptide, found in every living cell and essential to core cellular energy processes.
NAD+ has been studied in laboratory research for its role in cellular energy metabolism, DNA repair pathways, and processes related to cellular aging.
SS-31 10mg
SS-31, also known as elamipretide, is a synthetic peptide made of 4 amino acids, engineered to target mitochondria, the energy-producing structures inside cells. Its alternating chemical structure allows it to concentrate at the inner mitochondrial membrane.
SS-31 has been studied in laboratory and clinical research for its interactions with mitochondrial membrane components and cellular energy production pathways.
Thymosin Alpha-1 10mg
Thymosin Alpha-1 is a synthetic version of a naturally occurring peptide produced by the thymus gland, made of 28 amino acids.
Thymosin Alpha-1 has been studied in clinical and laboratory research for its interactions with immune system signaling pathways, including research involving T-cell activity.
Cagrilintide 10mg
Cagrilintide is a synthetic, long-acting analog of amylin, a naturally occurring hormone involved in metabolic signaling. It has been chemically modified to remain active longer than natural amylin in research settings.
Cagrilintide has been studied in clinical research for its interactions with amylin receptor pathways and its role in metabolic and appetite-related signaling research.
CagriSema Blend 10mg
Cagrilintide + Semaglutide
CagriSema is a combination of two synthetic peptides studied together: cagrilintide, an amylin receptor agonist, and semaglutide, a GLP-1 receptor agonist.
This blend has been studied in clinical research for the combined effects of amylin and GLP-1 receptor signaling on metabolic and appetite-related research pathways.
Retatrutide 10mg
Retatrutide is a synthetic peptide engineered to interact with three different hormone receptors, GLP-1, GIP, and glucagon receptors, which is why it is sometimes called a "triple agonist" compound.
Retatrutide has been studied in clinical research for its interactions with these receptor pathways and their role in metabolic signaling research.
Semaglutide 10mg
Semaglutide is a synthetic peptide analog of GLP-1 (glucagon-like peptide-1), a naturally occurring hormone involved in blood sugar and metabolic signaling.
Semaglutide has been studied in clinical research for its interactions with the GLP-1 receptor and its role in metabolic and blood sugar-related signaling pathways.
Tirzepatide 10mg
Tirzepatide is a synthetic peptide engineered to interact with two hormone receptors, GLP-1 and GIP, which is why it is described as a "dual agonist" compound.
Tirzepatide has been studied in clinical research for its interactions with these receptor pathways and their role in metabolic signaling research.
BPC-157 Oral 500mcg
BPC-157 is a synthetic peptide based on a protective peptide fragment found in gastric juice, made of 15 amino acids. This version is formulated as an oral capsule for laboratory research use.
BPC-157 has been studied in laboratory research for its interactions with tissue repair-related signaling pathways, including research using gut and connective tissue models, in this case with an oral delivery format.
Methylene Blue 20mg
Methylene Blue is a synthetic compound, not a peptide, with a well-characterized chemical structure that allows it to interact with cellular electron transport processes.
It has been studied in laboratory research for its role in mitochondrial electron transport chain activity and cellular oxidative stress pathways.
MK-677 10mg
MK-677, also known as ibutamoren, is a synthetic compound, not a peptide, that acts on the ghrelin receptor. Unlike most growth hormone-related peptides, which break down in the digestive system, it is orally active, so it is supplied as a tablet.
MK-677 has been studied in clinical and laboratory research for its interactions with the ghrelin receptor and its role in growth hormone and IGF-1 secretion pathways.
Orforglipron 12mg
Orforglipron is a synthetic small molecule, not a peptide, engineered to act on the GLP-1 receptor. It is notable for being orally active, where most GLP-1 receptor compounds are injectable peptides.
It has been studied in clinical research for its interactions with the GLP-1 receptor and its role in metabolic signaling pathways.
BPC-157 10mg
BPC-157 is a synthetic peptide based on a protective fragment of a protein found in gastric juice, made of 15 amino acids.
BPC-157 has been studied extensively in laboratory research for its interactions with tissue repair-related signaling pathways, including research using gut, tendon, and connective tissue models.
GLOW Blend 70mg
GHK-Cu + TB-500 + BPC-157
The GLOW blend combines three compounds in one vial: GHK-Cu, a copper-binding tripeptide; BPC-157, a gastric-fragment-derived peptide; and TB-500, a fragment of thymosin beta-4.
Each compound has been studied separately in laboratory research on skin biology and tissue repair-related cellular signaling. This vial supplies all three together.
KLOW Blend 80mg
GHK-Cu + TB-500 + BPC-157 + KPV
The KLOW blend combines four compounds in one vial: GHK-Cu, a copper-binding tripeptide; BPC-157; TB-500; and KPV, a tripeptide fragment of alpha-MSH.
Each compound has been studied separately in laboratory research on skin biology, tissue repair and inflammatory signaling. This vial supplies all four together.
TB-500 10mg
TB-500 is a synthetic peptide representing the active region of thymosin beta-4, a naturally occurring protein involved in cell structure and movement.
TB-500 has been studied in laboratory research for its role in actin-binding activity and cell migration pathways relevant to tissue repair research.
Wolverine Blend 10mg
BPC-157 + TB-500
The Wolverine blend combines two peptides from tissue-repair research: BPC-157, a peptide derived from a gastric protective fragment, and TB-500, a fragment of the protein thymosin beta-4.
Each peptide has been studied separately in laboratory research on tissue repair-related signaling and cell migration. They are commonly paired in research because they are studied for different parts of those pathways.
Research use only. Not for human or veterinary consumption. Not FDA-approved. No medical claims are made. Pricing and ordering are available to verified users — email torreylabs@gmail.com to apply for access.