Peptide Research Profiles
In-depth, evidence-based research profiles on the most talked-about peptides in 2026. Each profile covers mechanism of action, clinical data, comparisons, safety, and FAQ — backed by primary sources.
Browse by research area
Side-by-side product comparisons
GLP-1 Receptor Agonists Compared →
Side-by-side comparison of Semaglutide, Tirzepatide, Retatrutide, and Liraglutide — mechanism, dose ranges, purity, and price.
Growth Hormone Secretagogues Compared →
Compare CJC-1295, Ipamorelin, Sermorelin, Tesamorelin, and Hexarelin — GHRH vs ghrelin-receptor pathways, dose ranges, and pricing.
Healing & Repair Peptides Compared →
BPC-157, TB-500, GHK-Cu, and MGF — compare mechanisms, dose ranges, and pricing for the leading recovery research peptides.
Nootropic Peptides Compared →
Compare Semax, Selank, N-Acetyl Semax Amidate, and DSIP — neurotransmitter pathways, dose ranges, and pricing.
Longevity & Mitochondrial Peptides Compared →
Compare Epithalon, MOTS-c, SS-31, and Humanin — distinct longevity-pathway mechanisms, dose ranges, and pricing.
Retatrutide
What is retatrutide?
Retatrutide is a research peptide that activates three hormone receptors: GLP-1, GIP and glucagon. Receptors are proteins that receive signals. Human trials study defined clinical preparations, not the research vials in this catalog.
MOTS-c
What is MOTS-c peptide?
MOTS-c is a peptide made of 16 amino acids. Its genetic instructions are found in mitochondria, the parts of cells involved in energy production. Researchers study its role in energy use and responses to stress.
KPV
What is KPV?
KPV is a peptide made of three amino acids: lysine, proline and valine. It comes from a fragment of the hormone alpha-MSH. Researchers study how it affects inflammation in cells and animals.
BPC-157
What is BPC 157?
BPC-157 is a research peptide made of 15 amino acids, the building blocks of proteins. Its name means Body Protection Compound-157. Most findings come from cell and animal studies, not large human trials.
Semaglutide
What is semaglutide?
Semaglutide is a peptide that activates the GLP-1 receptor. GLP-1 is a hormone involved in blood sugar and appetite signals. Clinical findings concern tested medicine formulations, not a laboratory vial.
GHK-Cu
What is GHK-Cu?
GHK-Cu is a short peptide bound to copper. GHK stands for glycine, histidine and lysine, its three amino acids. Researchers study it in skin, wound and gene-activity models.
Tirzepatide
What is tirzepatide?
Tirzepatide is a peptide that activates GIP and GLP-1 receptors. These receptors respond to hormones involved in blood sugar and appetite. Research vials are not the medicine formulations used in human trials.
Sermorelin
What is sermorelin?
Sermorelin is a peptide made of 29 amino acids. It is a fragment of growth hormone releasing hormone, or GHRH. Researchers study how it signals the pituitary gland to release growth hormone.
