Research Peptide Learning Center
Clear, educational articles designed to help researchers understand peptides, laboratory research, product quality and testing.
SS-31 Research Guide
An evidence-based overview of SS-31, also known as elamipretide, including its mitochondrial targeting, cardiolipin interactions, proposed effects on cristae and bioenergetics, preclinical research, human trials, and the limits of current scientific evidence.
Kisspeptin Research Guide
An evidence-based overview of kisspeptin research, including KISS1 and KISS1R biology, upstream regulation of GnRH, gonadotropin signaling, puberty and reproductive physiology, human studies, and the limits of current scientific evidence.
Semax Research Guide
An evidence-based overview of Semax research, including its ACTH-derived structure, proposed neurotrophic and neurotransmitter mechanisms, cognition and stress studies, preclinical findings, and the limits of current scientific evidence.
Selank Research Guide
An evidence-based overview of Selank research, including its relationship to tuftsin, proposed GABA-related mechanisms, anxiety and cognition studies, preclinical findings, and the limits of current scientific evidence.
GHRP-6 Research Overview Ghrelin Receptor Signaling Appetite Studies and Evidence Limits
An evidence-based overview of GHRP-6 research, including ghrelin-receptor biology, experimental appetite and hormone studies, evidence limits, and the importance of batch-specific analytical documentation.
GHRP-2 Research Overview Ghrelin Receptor Signaling and Evidence Limits
An evidence-based overview of GHRP-2 research, including its molecular identity, ghrelin-receptor signaling, experimental hormone studies, evidence limits, and the role of batch-specific analytical documentation.
CJC-1295 Peptide Research Guide: GHRH Signaling, DAC Chemistry, and Evidence Limits
An accessible, evidence-based overview of CJC-1295, the distinction between DAC and non-DAC materials, GHRH receptor signaling, albumin conjugation, early human findings, evidence limits, safety uncertainty, and batch-specific analytical documentation.
Sermorelin Peptide Research Guide: GHRH Signaling, Evidence Context, and Quality Considerations
An evidence-based educational guide to sermorelin peptide research, its relationship to growth hormone-releasing hormone, the GH–IGF-1 axis, study interpretation, analytical quality, and regulatory context.
Thymosin Alpha-1 Research Guide: Identity, Immune Signaling, Clinical Context, and Evidence Limits
A research-focused overview of thymosin alpha-1, its chemical identity, proposed immune-signaling mechanisms, human clinical-study context, analytical quality considerations, and the limits of current evidence.
SNAP-8 Research Guide: Acetyl Octapeptide-3, Cosmetic Formulations, and Evidence Limits
An evidence-based overview of SNAP-8, also called acetyl octapeptide-3, including its chemical identity, cosmetic-formulation research, proposed mechanism, analytical considerations, and the limits of current evidence.
AOD-9604 Research Overview
An evidence-based overview of AOD-9604 research, including its molecular identity, early metabolic research, human-study context, quality considerations, and research limitations.
Retatrutide Peptide: A Research Overview of Triple GIP, GLP-1, and Glucagon Receptor Activity
An accessible, evidence-based introduction to retatrutide, including its GIP, GLP-1, and glucagon receptor design, clinical research, investigational status, and batch-linked analytical documentation.
Tirzepatide Peptide: A Clear Research Overview of Dual GIP and GLP-1 Receptor Activity
An accessible, evidence-based introduction to tirzepatide, including molecular design, GIP and GLP-1 receptor biology, clinical research, approved medicines, and batch-linked analytical documentation.
Semaglutide Peptide: A Clear Research Overview of GLP-1 Receptor Activity
An accessible, evidence-based introduction to semaglutide, including molecular design, GLP-1 receptor biology, clinical research, approved medicines, and batch-linked analytical documentation.
BPC-157 Peptide: A Clear Overview of Preclinical Research and Evidence Limits
An accessible, evidence-based introduction to BPC-157, including its 15-amino-acid sequence, laboratory and animal research, proposed signaling pathways, limited human evidence, regulatory status, and batch-linked analytical documentation.
GHK-Cu Copper Tripeptide: A Clear Guide to Research, Mechanisms, and Evidence Limits
An accessible, evidence-based introduction to GHK-Cu, including its three-amino-acid structure, copper coordination, laboratory and animal research, limited human findings, formulation questions, and batch-linked analytical documentation.
TB-500 Research Guide: Identity, Thymosin Beta-4 Biology, and Evidence Limits
An accessible, evidence-based overview of TB-500, the important distinction between the commercial name and thymosin beta-4, actin biology, cell migration, angiogenesis, wound and tendon models, limited human evidence, and batch-specific analytical documentation.
Ipamorelin Peptide Research Guide: Ghrelin-Receptor Signaling, Selectivity, and Evidence Limits
An accessible, evidence-based overview of ipamorelin, its selective growth-hormone secretagogue profile, ghrelin-receptor signaling, pharmacokinetic research, gastrointestinal studies, limited clinical outcomes, safety concerns, and batch-specific analytical documentation.
Tesamorelin Peptide: A Clear Research Overview of GHRH Signaling and Visceral Fat
An accessible, evidence-based introduction to tesamorelin, including molecular design, GHRH receptor signaling, major HIV-associated lipodystrophy studies, regulatory context, and batch-linked analytical documentation.
MOTS-c Peptide Research Guide: Mitochondrial Signaling, Metabolism, Exercise, and Evidence Limits
An accessible, evidence-based overview of MOTS-c, a mitochondrial-derived peptide studied in cellular metabolism, stress signaling, exercise adaptation, aging models, genetic variation, and metabolic research, with emphasis on translational limits and batch-specific analytical documentation.
KPV Peptide Research Guide: Alpha-MSH Origins, PepT1 Transport, Inflammation, and Evidence Limits
An accessible, evidence-based overview of KPV, the Lys-Pro-Val tripeptide derived from alpha-MSH, including PepT1 transport, cellular inflammatory pathways, animal colitis studies, antimicrobial findings, experimental delivery systems, evidence gaps, and batch-specific analytical documentation.
NAD+ Research Guide: Cellular Energy, Redox Biology, Sirtuins, Aging, and Evidence Limits
An accessible, evidence-based overview of nicotinamide adenine dinucleotide, including its redox and signaling roles, cellular synthesis and consumption, age-related research, differences between NAD+ and its precursors, findings from animal and human studies, evidence gaps, and batch-specific analytical documentation.
Epithalon Research Guide: AEDG, Telomerase, Telomeres, Aging Biology, and Evidence Limits
An evidence-based overview of the synthetic tetrapeptide Epithalon, including its AEDG sequence, distinction from Epithalamin, telomerase, telomere, lifespan, circadian, and gene-expression research, major limitations, and the importance of batch-specific analytical documentation.
PT-141 Research Guide: Bremelanotide, Melanocortin Receptors, Sexual-Function Studies, and Evidence Limits
An evidence-based overview of PT-141, also called bremelanotide, including its cyclic peptide structure, relationship to melanocortin signaling, findings from female and male sexual-function studies, regulatory limitations, safety observations, and the importance of batch-specific analytical documentation.
Peptide Quality: Purity, Identity, and Laboratory Testing
An accessible guide to peptide identity, purity, assay, chromatography, mass spectrometry, impurities, and the batch-specific records needed to interpret laboratory results responsibly.
Peptide Bonds and Amino-Acid Sequences: How Peptides Are Built
An engaging guide to how amino acids connect through peptide bonds, why peptide sequences are written from N-terminus to C-terminus, and how small sequence changes can create chemically different research materials.
What Are Peptides? A Simple Introduction
A beginner-friendly guide to what peptides are, how peptide bonds form, how peptides differ from proteins, and why research quality documentation matters.