Peptide research guides
What each peptide is, how it works, what researchers are studying — and an honest label for how strong the evidence is. Every guide links to recent peer-reviewed papers.
Cognitive
What is Selank?
Selank is a synthetic seven-amino-acid peptide based on tuftsin, a natural immune-system peptide, developed in Russia.
Read the guide →Human clinical studiesWhat is Semax?
Semax is a synthetic seven-amino-acid peptide derived from a fragment of ACTH (adrenocorticotropic hormone), developed in Russia.
Read the guide →Dermal
What is GHK-Cu?
GHK-Cu is a naturally occurring copper-binding tripeptide (glycine-histidine-lysine) first isolated from human plasma in 1973.
Read the guide →Very limited researchWhat is SNAP-8?
SNAP-8 (acetyl octapeptide-3) is a synthetic eight-amino-acid peptide developed for cosmetics.
Read the guide →GH Secretagogues
What is CJC-1295 (no DAC)?
CJC-1295 without DAC (also called modified GRF 1-29) is a lab-made version of the first 29 amino acids of growth-hormone-releasing hormone (GHRH).
Read the guide →Human clinical studiesWhat is CJC-1295 (with DAC)?
CJC-1295 with DAC is a GHRH analogue attached to a “drug affinity complex” that binds albumin in the blood.
Read the guide →Human clinical studiesWhat is Ipamorelin?
Ipamorelin is a synthetic five-amino-acid peptide from the “growth-hormone secretagogue” family.
Read the guide →Approved drugWhat is Sermorelin?
Sermorelin is a synthetic copy of the first 29 amino acids of human growth-hormone-releasing hormone (GHRH 1-29).
Read the guide →Approved drugWhat is Tesamorelin?
Tesamorelin is a stabilized analogue of growth-hormone-releasing hormone (GHRH).
Read the guide →Growth Factors
Immune
What is ARA-290?
ARA-290 (cibinetide) is an 11-amino-acid peptide engineered from a region of erythropoietin (EPO).
Read the guide →Mostly animal & lab studiesWhat is KPV?
KPV is a tripeptide (lysine-proline-valine) that makes up the tail end of alpha-melanocyte-stimulating hormone (α-MSH).
Read the guide →Mostly animal & lab studiesWhat is LL-37?
LL-37 is the only cathelicidin antimicrobial peptide made by the human body, named for its 37 amino acids beginning with two leucines.
Read the guide →Human clinical studiesWhat is Thymosin Alpha-1?
Thymosin alpha-1 is a 28-amino-acid peptide originally isolated from the thymus, the organ where immune T-cells mature.
Read the guide →Human clinical studiesWhat is VIP?
VIP (vasoactive intestinal peptide) is a 28-amino-acid neuropeptide found throughout the nervous system, gut and lungs.
Read the guide →Longevity
What is Epitalon?
Epitalon is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) developed in Russia, modeled on a pineal-gland extract called epithalamin.
Read the guide →Human clinical studiesWhat is NAD+?
NAD+ (nicotinamide adenine dinucleotide) is not a peptide but a coenzyme present in every living cell.
Read the guide →Melanocortin
Mitochondrial
What is MOTS-c?
MOTS-c is a 16-amino-acid peptide encoded by mitochondrial DNA — one of a small family of “mitochondrial-derived peptides.”
Read the guide →Human clinical studiesWhat is SS-31?
SS-31 (elamipretide) is a small synthetic tetrapeptide designed to concentrate inside mitochondria, the energy-producing structures of cells.
Read the guide →Reproductive
What is Kisspeptin-10?
Kisspeptin-10 is the active ten-amino-acid fragment of kisspeptin, a hormone that sits at the top of the reproductive hormone chain.
Read the guide →Approved drugWhat is Oxytocin?
Oxytocin is a nine-amino-acid hormone made in the hypothalamus and released by the pituitary gland.
Read the guide →Approved drugWhat is PT-141?
PT-141 (bremelanotide) is a synthetic peptide derived from melanotan-2.
Read the guide →Sleep
Tissue Repair
What is BPC-157?
BPC-157 (“body protection compound”) is a synthetic 15-amino-acid peptide based on a fragment of a protein found in human gastric juice.
Read the guide →Mostly animal & lab studiesWhat is TB-500?
TB-500 is a synthetic fragment of thymosin beta-4, a 43-amino-acid protein found in almost every human cell.
Read the guide →These guides summarize published research for educational purposes. They are not medical advice and do not describe how to use any compound.Products referenced on this site are sold by third parties for laboratory research use only.