Mechanisms, amino acid sequences, signaling pathways, and independent analysis for every research-grade peptide — written at the level of a clinical researcher, accessible to the scientifically curious.
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8 key studies, 6 mechanisms, evidence quality table across 8 applications.
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Research Use Only: All compounds described on this website are supplied by Purgo Labs strictly for qualified laboratory research purposes. None of the compounds listed are approved by the FDA for human or veterinary use, nor are they intended for diagnostic, therapeutic, or cosmetic application. The information presented is for educational and scientific reference only and does not constitute medical advice.
Targeted Research
30 research-grade compounds across 8 categories. Click any compound for full scientific breakdown, mechanism of action, and pricing.
Tissue Repair & Angiogenic Signaling
BPC-157 — formally designated Body Protection Compound 157 (also commonly referenced in research literature as BPC157, bpc-157 peptide, or simply BPC 157) — is ...
Actin Regulation & Cell Migration Pathways
TB-500 (also referenced in research literature as TB500, tb-500 peptide, or Thymosin Beta-4 fragment) is a synthetic heptapeptide corresponding to the N-acetyla...
Synergistic Dual-Peptide Regenerative Stack
The Wolverine Blend is a pre-combined formulation of two of the most extensively researched recovery peptides available: BPC-157 and TB-500. Named for the comic...
Collagen Synthesis & Matrix Remodeling
GHK-Cu — the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine — is one of the most extensively studied naturally occurring peptides in the field ...
MC1R Agonism & Melanogenesis Stimulation
Melanotan I (MT1), clinically known as afamelanotide, is a synthetic analog of alpha-melanocyte-stimulating hormone (α-MSH), a naturally occurring neuropeptide ...
Multi-Receptor Melanocortin Agonism
Melanotan II (MT2) is a synthetic cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone (α-MSH), developed at the University of Arizona in the 1980...
Triple-Action Regenerative & Anti-Aging Stack
The Glow Complex is Purgo Labs' flagship tri-peptide formulation, combining three of the most extensively researched compounds in skin biology and regenerative ...
Growth Hormone Secretagogue & IGF-1 Axis Activation
CJC-1295 (also referenced as CJC1295, cjc-1295 peptide, or Modified GRF 1-29) is a synthetic analog of growth hormone-releasing hormone (GHRH), the endogenous h...
Selective Growth Hormone Secretagogue Receptor Agonism
Ipamorelin (NNC-26-0161) is a synthetic pentapeptide and highly selective agonist of the growth hormone secretagogue receptor (GHS-R), also known as the ghrelin...
PI3K/Akt & MAPK Anabolic Signaling
IGF-1 LR3 (Insulin-like Growth Factor 1 Long Arginine 3) is a recombinant analog of human insulin-like growth factor 1 (IGF-1), engineered to have significantly...
GHRH Receptor Activation & Visceral Fat Reduction
Tesamorelin is a synthetic analog of human growth hormone-releasing hormone (GHRH) consisting of the full 44-amino-acid sequence of GHRH with a trans-3-hexenoic...
Synergistic GHRH + GHS-R Dual Axis Growth Hormone Stimulation
The CJC-1295/Ipamorelin blend combines two complementary growth hormone secretagogues: CJC-1295, a GHRH analog, and Ipamorelin, a selective ghrelin receptor ago...
Incretin Hormone & Insulin Secretion Regulation
Glucagon-Like Peptide-1 (GLP-1) is a 30-amino-acid incretin hormone produced by L-cells in the distal small intestine and colon in response to nutrient ingestio...
GLP-2 Receptor Agonism & Intestinal Mucosal Growth
Teduglutide (GLP-2 T) is a synthetic analog of glucagon-like peptide-2 (GLP-2), an intestinotrophic hormone produced by L-cells of the distal small intestine an...
Triple Incretin Receptor Agonism & Weight Reduction
Retatrutide (LY3437943, GLP-3 R) is a novel triple agonist developed by Eli Lilly that simultaneously activates three incretin and metabolic hormone receptors: ...
GPR54 Agonism & Neuroendocrine Axis Regulation
Kisspeptin-10 (KLOW) is the biologically active C-terminal decapeptide fragment of kisspeptin, a neuropeptide encoded by the KISS1 gene that serves as the maste...
Lipolytic hGH Fragment & Fat Metabolism Regulation
AOD-9604 is a synthetic 16-amino-acid peptide fragment corresponding to the C-terminal region (residues 176-191) of human growth hormone (hGH), modified with a ...
Mitochondrial Bioenergetics & Sirtuin Activation
Nicotinamide adenine dinucleotide (NAD+) is a dinucleotide coenzyme found in every living cell, where it serves as an indispensable electron carrier in cellular...
Cellular Redox Homeostasis & Detoxification
Glutathione (GSH) is a tripeptide consisting of glutamic acid, cysteine, and glycine, connected by an unusual gamma-peptide bond between the glutamate and cyste...
Telomerase Activation & Epigenetic Anti-Aging
Epithalon (also spelled Epitalon) is a synthetic tetrapeptide with the sequence Ala-Glu-Asp-Gly, developed by Professor Vladimir Khavinson at the St. Petersburg...
Mitochondrial-Nuclear Retrograde Signaling & Metabolic Homeostasis
MOTS-c is a 16-amino-acid mitochondria-derived peptide (MDP) encoded within the 12S ribosomal RNA gene of the mitochondrial genome, discovered by Lee et al. in ...
Cardiolipin Stabilization & Mitochondrial Membrane Protection
SS-31 (also known as Elamipretide, MTP-131, or Bendavia) is a synthetic tetrapeptide developed by Hazel Szeto and Peter Schiller at Weill Cornell Medical Colleg...
GABAergic Modulation & Anxiolytic Neuropeptide
Selank is a synthetic heptapeptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences, based on the immunomodulatory tetrapepti...
BDNF Upregulation & Neuroprotective Signaling
Semax is a synthetic heptapeptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences, based on the ACTH(4-7) fragment (Met-Glu-...
Synaptogenesis & HGF/c-Met Cognitive Enhancement
Dihexa (PNB-0408) is a small molecule peptidomimetic derived from angiotensin IV, developed by researchers at Washington State University. It is one of the most...
Sleep Architecture Modulation & Neuroendocrine Regulation
DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide first isolated from rabbit cerebral venous blood by Monnier and colleagues in 1977 duri...
Innate Immune Defense & Immunomodulatory Signaling
LL-37 is the only member of the cathelicidin family of antimicrobial peptides expressed in humans, derived from the C-terminal 37 amino acids of the hCAP18 prec...
T-Cell Maturation & Adaptive Immune Regulation
Thymosin Alpha-1 (Tα1) is a 28-amino-acid peptide originally isolated from thymosin fraction 5 of bovine thymic tissue by Allan Goldstein in the 1970s. It is th...
VPAC Receptor Agonism & Neuroimmune Modulation
Vasoactive Intestinal Peptide (VIP) is a 28-amino-acid neuropeptide belonging to the secretin/glucagon superfamily, originally isolated from porcine small intes...
Six interactive tools to accelerate your peptide research — from pharmacokinetic simulation to protocol planning.
CompoundReview was built to bridge the gap between dense academic literature and the curious researcher or biohacker who wants to understand exactly what a peptide does at the molecular level — without a PhD in biochemistry.
Every compound profile is grounded in peer-reviewed research, with citations to primary literature, accurate amino acid sequences, verified molecular weights, and honest assessments of the current state of the evidence.
All compounds referenced in this guide are available through Purgo Labs — a research-grade supplier committed to third-party purity verification, cGMP manufacturing standards, and transparent certificate of analysis documentation for every batch.
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CompoundReview is an independent research reference covering the science behind peptide compounds used in biomedical research. Each compound profile is built from primary literature — peer-reviewed studies, clinical trial data, and published pharmacokinetic analyses — and written to be accurate at the molecular level while remaining accessible to non-specialists.
Peptides are short chains of amino acids that act as signaling molecules throughout the body. Unlike small-molecule drugs, peptides interact with specific receptors to modulate biological pathways — from growth hormone secretion and tissue repair to metabolic regulation, cognitive function, and immune response. The compounds profiled here span a wide range of research categories, including recovery peptides such as BPC-157 and TB-500, growth hormone secretagogues like CJC-1295 and Ipamorelin, GLP-1 receptor agonists including Retatrutide, and longevity compounds such as Epithalon and MOTS-c.
Every profile includes verified amino acid sequences, molecular weights, half-life data, mechanism of action summaries, and an honest assessment of the current state of the evidence — distinguishing between findings from well-designed human clinical trials and those from preclinical or animal studies. Where the evidence is strong, we say so. Where it is preliminary or limited to rodent models, we say that too.
All content on this site is for educational and research purposes only. None of the compounds profiled here are approved by the FDA for human use outside of specific clinical indications. CompoundReview does not provide medical advice. Always consult a qualified healthcare professional before considering any peptide or supplement protocol.
Medical Disclaimer: All content on this site is for educational and research purposes only. Research peptides are not FDA-approved for human use. Always consult a qualified healthcare professional before considering any peptide or supplement protocol. Nothing on this site constitutes medical advice, diagnosis, or treatment.
