Compound Reference Database
Research Peptide Database
Every compound below carries its molecular formula, CAS registry number, amino acid sequence and reconstitution protocol, so a Certificate of Analysis can be checked line by line rather than taken on trust. Identifiers are verified against the NIH PubChem database.
34
Compounds profiled
32
With verified formula
6
Research categories
13
Audited vendors
Metabolic & Fat Loss
Incretin receptor agonists and lipolytic fragments. The most heavily counterfeited category in the research peptide market, and the one where COA verification matters most.
| Compound | Purity Goal |
|---|---|
| RetatrutideTriple GIP/GLP-1/Glucagon receptor agonist showing unprecedented metabolic acceleration and weight management properties in clinical research. | > 99.0% |
| TirzepatideDual GIP/GLP-1 receptor agonist with high efficacy in glycemic modulation and research-grade body composition optimization. | > 99.0% |
| SemaglutideSingle-agonist GLP-1 receptor agonist. The foundational compound in the incretin mimetic class, with extensive clinical characterization and well-established purity benchmarks in research settings. | > 99.0% |
| AOD-9604Modified fragment of human growth hormone (hGH 177-191) that selectively stimulates lipolysis without the hyperglycemic or proliferative effects of full-length hGH. Researched primarily for targeted adipose tissue metabolism. | > 99.0% |
Recovery & Healing
Cytoprotective and tissue-repair compounds studied for tendon, ligament, gut and soft-tissue models.
| Compound | Purity Goal |
|---|---|
| BPC-157Body Protection Compound 157. Renowned for accelerating tendon, ligament, gut-lining, and soft tissue repair via angiogenic pathways. | > 99.2% |
| TB-500 (Thymosin Beta-4)Promotes actin upregulation, cellular migration, and rapid systemic injury recovery. Synergizes strongly with BPC-157. | > 99.0% |
| IGF-1 LR3Engineered 83-amino-acid analog of human IGF-1 with a 13-amino-acid N-terminal extension and Glu3Arg substitution that reduces IGFBP binding by >90%. Extended half-life enables once-daily research protocols — the most widely used IGF-1 analog for studying growth factor signaling, myogenesis, and cell proliferation in vitro and in preclinical models. | > 99.0% (HPLC; recombinant protein) |
| PEG-MGFPegylated Mechano Growth Factor — the 24-amino-acid C-terminal E-peptide domain of the IGF-1Ec splice variant, conjugated with polyethylene glycol for extended half-life. Activates quiescent muscle satellite cells through MAPK/ERK signaling, expanding the pool of muscle precursor cells available for repair and hypertrophy — a mechanism distinct from mature IGF-1 signaling. | > 99.0% |
| LL-37 (Cathelicidin)The sole human cathelicidin antimicrobial peptide — a 37-amino-acid host defense peptide with dual antimicrobial and immunomodulatory functions. Regulated by vitamin D, it bridges innate and adaptive immunity through bacterial membrane disruption, chemokine induction, and wound-healing angiogenesis. One of the most extensively characterized human antimicrobial peptides. | > 99.0% |
| KPV (α-MSH Fragment)C-terminal tripeptide fragment of α-MSH (Lys-Pro-Val) with potent anti-inflammatory activity independent of melanocortin receptors. Inhibits NF-κB signaling and is transported into intestinal epithelial cells via the PepT1 oligopeptide transporter — enabling potential oral bioavailability. The smallest bioactive fragment of the melanocortin system with documented anti-inflammatory effects. | > 99.0% |
Longevity & Cellular
Telomerase activators, mitochondrial peptides and Khavinson bioregulators researched for cellular senescence endpoints.
| Compound | Purity Goal |
|---|---|
| GHK-Cu (Copper Peptide)Naturally occurring copper-binding tripeptide that stimulates collagen synthesis, DNA repair, and skin tissue remodeling. | > 99.0% |
| Epithalon (Epitalon)Telomerase-activating tetrapeptide researched for biological age reversal, pineal gland regulation, and circadian rhythm normalization. | > 99.5% |
| NAD+ (Nicotinamide Adenine Dinucleotide)Essential coenzyme for cellular redox reactions, sirtuin activation, and mitochondrial DNA repair. Declines with age — restoring NAD+ levels is a central strategy in longevity research. | > 99.0% |
| MOTS-cMitochondrial-derived peptide (MDP) encoded in the 12S rRNA region of mtDNA. Regulates metabolic flexibility, insulin sensitivity, and nuclear-mitochondrial crosstalk — a key mediator of the mitochondrial stress response. | > 99.0% |
| SS-31 (Elamipretide)Mitochondria-targeted tetrapeptide that binds cardiolipin in the inner mitochondrial membrane to preserve cristae structure, restore ATP synthesis, and reduce oxidative damage. FDA accelerated approval in 2025 for Barth syndrome (Forzinity) — the first approved cardiolipin-directed mitochondrial therapy. | > 99.0% |
| ThymalinPolypeptide complex extracted from calf thymus glands — the foundational compound in Khavinson peptide bioregulation. Restores age-related thymic immune decline by promoting T-lymphocyte maturation, normalizing CD4/CD8 ratios, and modulating cytokine balance. Registered as an immunomodulatory medication in Russia since 1982. | Standardized pharmaceutical extract (Russian Pharmacopoeia) |
| Vesugen (KED)Synthetic tripeptide (Lys-Glu-Asp, KED) from the Khavinson bioregulator family, targeted at vascular endothelium. Proposed to normalize endothelial gene expression, restore connexin coupling in aged vessels, and counteract atherosclerosis-associated endothelial dysfunction. The only peptide bioregulator specifically designed for the vascular system. | > 99.0% |
Cognitive & Neuro
Nootropic peptides and neurotrophic compounds studied for memory consolidation, anxiolysis and neuroprotection.
| Compound | Purity Goal |
|---|---|
| SemaxSynthetic heptapeptide ACTH(4-10) analogue developed in Russia. Registered as a nootropic and neuroprotective medication for stroke recovery, cognitive disorders, and optic nerve disease. Upregulates BDNF and modulates melanocortin and enkephalin pathways. | > 99.0% |
| SelankSynthetic heptapeptide anxiolytic based on the immunomodulatory peptide tuftsin with a stabilizing Pro-Gly-Pro extension. Approved in Russia for anxiety disorders and PTSD. Enhances GABA signaling without sedation or addiction potential — unique benzodiazepine-like anti-anxiety profile combined with cognitive enhancement and immune modulation. | > 99.0% |
| DSIP (Delta Sleep-Inducing Peptide)Nonapeptide first isolated from rabbit cerebral venous blood during electrically induced sleep in 1974. Proposed as an endogenous sleep-promoting factor, but five decades of research have produced mixed and inconsistent results. Remains one of the most controversial compounds in sleep peptide research — its physiological role and mechanism are genuinely unresolved. | > 99.0% |
| CerebrolysinEnzymatically processed porcine brain peptide preparation containing a standardized mixture of low-molecular-weight neurotrophic peptides and free amino acids. Mimics BDNF, NGF, and CNTF activity through multiple neurotrophic receptor pathways. Approved in 40+ countries (not FDA-approved in the US) for stroke, traumatic brain injury, and dementia — one of the most extensively clinically studied neuropeptide preparations globally with over 150 clinical trials. | Standardized porcine brain peptide extract (<10 kDa fraction) |
| DihexaSynthetic oligopeptide angiotensin IV analogue that binds hepatocyte growth factor (HGF) with high affinity and potentiates its activity at the c-Met receptor. Reported to be seven orders of magnitude more potent than BDNF in neurotrophic assays. Developed at Washington State University for Alzheimer's and Parkinson's research. Its prodrug fosgonimeton is currently in clinical trials. | > 99.0% |
| FGL-L (FGL Peptide)Synthetic 15-amino-acid peptide mimetic of the FG loop of neural cell adhesion molecule (NCAM). Activates fibroblast growth factor receptor 1 (FGFR1) independently of FGF ligands, promoting synaptogenesis, presynaptic enhancement, and memory consolidation. One of the first peptides rationally designed from NCAM structural biology rather than discovered empirically. | > 99.0% |
| PinealonSynthetic tripeptide (Glu-Asp-Arg) from the Khavinson bioregulator family, targeted at the pineal gland and cortical neurons. Proposed to normalize circadian gene expression, protect neurons from oxidative stress, and enhance cognitive function under conditions of CNS stress. One of the most extensively characterized short-peptide bioregulators after Epithalon. | > 99.0% |
| P21 (P021)Synthetic adamantane-capped tetrapeptide (Ac-DGGL-adamantane-NH₂) derived from the active region of ciliary neurotrophic factor (CNTF). Promotes hippocampal neurogenesis, BDNF upregulation, and spatial memory enhancement in rodent models. The adamantane cage confers blood-brain barrier penetration and resistance to exopeptidase degradation — a clever medicinal-chemistry solution to the delivery problem that plagues full-length CNTF. | > 99.0% |
| AdamaxEnhanced Semax analogue with N-terminal adamantane acetylation and C-terminal amidation for dramatically extended metabolic stability and blood-brain barrier penetration. Amplifies BDNF expression, neuroplasticity, and cognitive endurance beyond parent Semax — the "next-generation" nootropic peptide in the ACTH-derived family. Sustained receptor occupancy enables lower dosing for equivalent or superior cognitive effects. | > 99.0% |
Growth Hormone Secretagogues
GHRH analogs and selective ghrelin receptor agonists studied for pulsatile GH release.
| Compound | Purity Goal |
|---|---|
| CJC-1295 (no DAC)Modified GRF(1-29) analog that stimulates pulsatile growth hormone release via GHRH receptor agonism. Typically researched in combination with Ipamorelin or GHRP-2 for synergistic GH pulses. | > 99.0% |
| IpamorelinHighly selective ghrelin receptor (GHS-R1a) agonist. Releases growth hormone without the appetite stimulation, cortisol elevation, or prolactin spikes common with earlier GHRPs like GHRP-6. | > 99.0% |
| GHRP-2 (Pralmorelin)Synthetic hexapeptide ghrelin-mimetic (GHS-R1a agonist) with superior GH-releasing potency compared to GHRP-6. Stimulates pulsatile growth hormone release with less appetite stimulation than GHRP-6. One of the most widely characterized GHRPs alongside Ipamorelin. | > 99.0% |
| GHRP-6First-generation synthetic hexapeptide growth hormone secretagogue. The original GHRP from which the class derives. Strong GH release with pronounced appetite stimulation via ghrelin-mimetic activity — making it a dual-purpose research tool for both somatotropic and feeding-behavior studies. | > 99.0% |
| HexarelinMost potent synthetic GHRP-class GH secretagogue available. Unique among GHSs for its direct cardiac CD36 receptor-mediated cardioprotective and anti-fibrotic effects — actions independent of GH/IGF-1. Also the only GHRP that can stimulate GH release even when somatostatin tone is pathologically elevated. Desensitizes rapidly with continuous daily use. | > 99.0% |
| TesamorelinFDA-approved (Egrifta, 2010) stabilized GHRH(1-44) analog. Specifically indicated for reduction of excess visceral adipose tissue in HIV-associated lipodystrophy — the only GH-axis drug approved for a body-composition endpoint. Stimulates endogenous, pulsatile GH secretion rather than supplying exogenous GH, preserving physiological feedback regulation. | > 99.0% |
Sexual Health & Hormonal
Melanocortin receptor agonists studied for sexual function and pigmentation endpoints.
| Compound | Purity Goal |
|---|---|
| PT-141 (Bremelanotide)FDA-approved (Vyleesi, 2019) cyclic heptapeptide MC3R/MC4R agonist for hypoactive sexual desire disorder. The only approved centrally acting sexual arousal compound — works through hypothalamic melanocortin-dopamine pathways, not peripheral vasodilation. Fundamentally different mechanism from PDE5 inhibitors. | > 99.0% |
| Melanotan IINon-selective cyclic melanocortin receptor agonist (MC1R–MC5R) originally developed as a sunless tanning agent. Produces genuine melanin-based skin pigmentation from within — not a topical stain. Also activates MC4R for sexual arousal and appetite suppression. Widely used globally as a cosmetic peptide despite significant safety concerns and lack of regulatory approval. | > 99.0% |
Reconstitution Calculator
Work out BAC water volume and insulin syringe units for any vial size.
Audited Vendor Rankings
HPLC purity scores and lab partners for every vendor we have tested.
5 COA Red Flags
How to tell a real third-party HPLC report from a vendor marketing PDF.
All compounds listed are research chemicals intended for laboratory use only. Nothing on this page is medical advice or an endorsement of human administration. See ourlegal and editorial policy.