Research Library

In-depth research profiles for 56 of the 155 compounds in our catalog · more profiles coming

56 compounds
Triple-Action Metabolic Compound

Retatrutide

A triple-agonist GLP-1/GIP/glucagon receptor peptide studied for obesity and metabolic disease — the highest weight-loss efficacy of any investigational agent to date.

Synthetic peptideAAs39MW4,731 g/mol17 sources📖 Read guide
Cellular Peptide

BPC-157

A 15-amino acid pentadecapeptide derived from human gastric juice demonstrating broad tissue-protective and regenerative effects across 200+ preclinical publications.

Synthetic pentadecapeptideAAs15MW1,419.5 g/mol15 sources📖 Read guide
Cellular Peptide

TB-500

A synthetic analog of the endogenous thymosin beta-4 peptide with angiogenic, anti-inflammatory, and tissue-repair properties across 170+ preclinical publications.

Endogenous peptide / synthetic analogAAs43MW4,963 Da10 sources
Cellular Peptide

Thymosin Alpha-1

A synthetic 28-amino acid acetylated thymic peptide that modulates innate and adaptive immunity; approved in 30+ countries for hepatitis B/C and as a cancer immunoadjuvant.

Synthetic acetylated polypeptideAAs28MW3,108.3 g/mol8 sources
Metabolic Peptide

MOTS-c

A mitochondria-derived peptide encoded in the 12S rRNA, studied for metabolic regulation, exercise mimicry, insulin sensitization, and longevity.

Mitochondrial-derived peptideAAs16MW2,174.6 g/mol8 sources📖 Read guide
Cellular Coenzyme

NAD+

The body's central redox coenzyme — essential for cellular energy metabolism, DNA repair via PARPs, and sirtuin-mediated longevity pathways.

Dinucleotide coenzymeMW663.43 g/mol6 sources
Secretagogue Peptide

CJC-1295 (No DAC)

A short-acting 29-amino-acid GHRH analog studied for pulsatile growth-hormone release. This is the standalone no-DAC compound, not a CJC-1295/Ipamorelin blend.

Synthetic GHRH analogAAs29MW~3,367 g/mol6 sources
Secretagogue Peptide

CJC-1295 (With DAC)

The long-acting drug-affinity-complex form of CJC-1295. It is a distinct standalone compound from both no-DAC CJC-1295 and CJC-1295/Ipamorelin blends.

Long-acting synthetic GHRH analogAAs306 sources
Secretagogue PeptideBlend

CJC-1295 No DAC + Ipamorelin

A synergistic blend of a GHRH analog and a selective GHRP for dual-pathway pulsatile GH stimulation, achieving ~2.7× potency vs either compound alone.

GHRH analog + GH secretagogue blend6 sources
Secretagogue Peptide

Tesamorelin

A 44-amino acid GHRH analog that stimulates pituitary GH secretion — FDA-approved as Egrifta for HIV-associated lipodystrophy.

GHRH analogAAs446 sources📖 Read guide
GH Secretagogue Peptide

Ipamorelin

A selective synthetic pentapeptide GHRP that stimulates GH release via the ghrelin receptor without elevating cortisol or prolactin — the cleanest GHRP profile available.

Synthetic pentapeptideAAs5MW711.85 g/mol6 sources
Melanocortin Peptide

Melanotan-1

A synthetic 13-amino acid linear melanocortin analog; FDA/EMA-approved as afamelanotide (Scenesse) for erythropoietic protoporphyria.

Synthetic linear peptideAAs13MW1,646.8 g/mol5 sources
Antioxidant & Detoxification Peptide

Glutathione

The body's master antioxidant tripeptide — central to cellular redox balance, Phase II detoxification, immune function, and mitochondrial protection.

Tripeptide (γ-Glu-Cys-Gly)MW307.32 g/mol8 sources
GLP-1 Peptide

Semaglutide

A long-acting acylated GLP-1 receptor agonist; FDA-approved as Ozempic/Wegovy. The single most-searched compound in the research-peptide market.

Acylated GLP-1 receptor agonistAAs31 (modified backbone + C18 diacid linker)MW4,113.58 g/mol8 sources
Metabolic CombinationBlend

CagriSema (Cagrilintide + Semaglutide)

An investigational fixed combination of the long-acting amylin analog cagrilintide and the GLP-1 agonist semaglutide.

Fixed combination (cagrilintide + semaglutide)AAsTwo co-formulated peptidesMWNot applicable (combination)4 sources
GIP/GLP-1 Peptide

Tirzepatide

A dual GIP and GLP-1 receptor agonist; FDA-approved as Mounjaro/Zepbound. #2 most-searched compound on the site.

Dual GIP/GLP-1 receptor agonistAAs39 (modified + C20 diacid linker)MW4,813.45 g/mol7 sources
Metabolic Research Peptide

Cagrilintide

A long-acting acylated amylin analog that complements GLP-1 agonism — being co-developed with semaglutide (CagriSema) for superior weight loss.

Long-acting acylated amylin analogAAs37 (modified amylin)MW4,409 g/mol10 sources
GLP-1 Peptide

Liraglutide

A once-daily acylated GLP-1 receptor agonist; FDA-approved as Victoza/Saxenda — the predecessor to semaglutide.

Acylated GLP-1 receptor agonistAAs31 (modified + C16 acyl chain)MW3,751.20 g/mol7 sources
GLP-1 Peptide

Dulaglutide

A GLP-1 receptor agonist fused to a modified human IgG4 Fc — a large biologic, not a small peptide; FDA-approved as Trulicity.

GLP-1 receptor agonist Fc-fusion protein (homodimer)AAs≈275 per chain (homodimer)MW≈59,670 g/mol7 sources
Cellular Peptide

AOD-9604

A modified C-terminal fragment of human growth hormone with lipolytic activity but without IGF-1 axis stimulation.

Modified peptide fragmentAAs15 (modified)MW~1,815 g/mol6 sources
Growth Hormone

HGH 191AA (Somatropin)

Recombinant 191-amino-acid human growth hormone, structurally identical to pituitary hGH.

Recombinant 191-aa growth hormoneAAs191MW22,124 Da6 sources
GH Secretagogue Peptide

GHRP-6

A synthetic hexapeptide ghrelin/GHS-R agonist that stimulates GH release (with notable appetite stimulation).

Synthetic hexapeptide GH secretagogueAAs6MW873.01 g/mol8 sources
GH Secretagogue Peptide

GHRP-2

A synthetic hexapeptide GH secretagogue (ghrelin mimetic); used clinically in Japan as a GH stimulation test agent.

Synthetic hexapeptide GH secretagogueAAs6MW817.97 g/mol7 sources
GH Secretagogue Peptide

Hexarelin

A synthetic hexapeptide GH secretagogue, a more metabolically stable GHRP-6 analog.

Synthetic hexapeptide GH secretagogueAAs6MW887.04 g/mol8 sources
Secretagogue Peptide

Sermorelin

The 1–29 fragment of GHRH that retains full GH-releasing activity; previously FDA-approved (Geref).

GHRH(1–29) analogAAs29MW3,357.93 g/mol7 sources
Growth Factor Analog Peptide

IGF-1 LR3

A long-acting synthetic analog of IGF-1 with a 13-amino acid N-terminal extension and Arg-3 substitution, designed for dramatically reduced IGFBP binding and extended activity.

Synthetic IGF-1 analogAAs83MW9,117.60 g/mol5 sources
Growth Factor Analog Peptide

IGF-DES (IGF-1 DES[1-3])

An IGF-1 analog truncated at the first three N-terminal residues, with markedly reduced IGFBP binding.

Truncated IGF-1 analog (residues 4–70)AAs67MW≈7,371 g/mol6 sources
Growth Factor Analog Peptide

MGF (Mechano Growth Factor)

The C-terminal Ec peptide of the IGF-1Ec splice variant, expressed in mechanically loaded muscle.

IGF-1 Ec splice-variant C-terminal peptideAAs24MW≈2,867 g/mol (24-aa synthetic form)7 sources
Growth Factor Analog Peptide

PEG-MGF

MGF conjugated to polyethylene glycol to extend its otherwise very short systemic half-life.

PEGylated MGF (extended half-life)AAs24 (peptide core)MWMGF core ≈2,867 g/mol + PEG (variable)6 sources
Growth Factor Modulator

Follistatin-344

The FS-344 isoform of follistatin, a glycoprotein that binds and antagonizes myostatin and activin.

Follistatin isoform (FS-344) glycoproteinAAs344MW≈38–42 kDa (glycosylated)7 sources
Erythropoiesis Glycoprotein

EPO (Erythropoietin)

A recombinant glycoprotein hormone that stimulates red blood cell production; FDA-approved (epoetin alfa).

Recombinant glycoprotein hormoneAAs165MW≈30,400 Da (≈34 kDa glycosylated)7 sources
Cognitive Peptide

Dihexa

An angiotensin IV-derived small molecule that potentiates the HGF/MET system; studied for synaptogenesis.

Angiotensin IV-derived HGF/MET potentiatorAAs2 (modified dipeptide)MW535.72 g/mol5 sources
Neurotrophic Peptide MixtureBlend

Cerebrolysin

A porcine brain-derived mixture of low-molecular-weight neuropeptides and free amino acids with neurotrophic-mimetic activity.

Porcine brain-derived peptide mixtureAAsMixture (not a single species)MWLow-MW peptides <10 kDa + free amino acids6 sources
Neurotrophic Peptide

P21 Peptide

A CNTF (ciliary neurotrophic factor)-derived peptidergic compound studied for BDNF induction and neurogenesis.

CNTF-derived neurotrophic peptideAAsNot well characterized publiclyMWNot well characterized publicly7 sources
Cellular Peptide

Epithalon

A synthetic tetrapeptide analog of the pineal gland extract epithalamin, studied for telomerase activation, antioxidant activity, and longevity effects.

Synthetic tetrapeptideAAs4 (tetrapeptide)MW390.35 g/mol12 sources
Senolytic Peptide

FOXO4-DRI

A D-retro-inverso peptide that disrupts the FOXO4–p53 interaction to selectively trigger apoptosis in senescent cells.

D-retro-inverso FOXO4–p53 interaction peptideAAsD-amino-acid peptide (length not standardized)MWNot well characterized publicly6 sources
Mitochondrial Peptide

Humanin

A 24-amino-acid mitochondrial-derived peptide encoded in the MT-RNR2 gene with cytoprotective signaling activity.

Mitochondrial-derived peptideAAs24MW≈2,687 g/mol7 sources
Mitochondrial Peptide

SS-31 (Elamipretide)

A mitochondria-targeting tetrapeptide that binds cardiolipin on the inner mitochondrial membrane; investigated clinically.

Mitochondria-targeting tetrapeptideAAs4MW639.79 g/mol9 sources
Dermal Compound

GHK-Cu

A naturally occurring copper-binding tripeptide that modulates 4,000+ human genes with regenerative, skin-protective, and wound-healing properties.

Copper-peptide complexAAs3 (tripeptide)MW340.38 g/mol (free) / 401.91 g/mol (with Cu)3 sources
Melanocortin Peptide

Melanotan-2

A cyclic lactam heptapeptide melanocortin agonist studied for tanning, sexual function, and appetite suppression via MC1R/MC3R/MC4R activation.

Cyclic lactam heptapeptideAAs7MW1,024.18 g/mol7 sources
Dermal Peptide

Snap-8

A synthetic SNAP-25 mimetic octapeptide that inhibits catecholamine release at the neuromuscular junction, studied for expression line reduction.

Synthetic neuropeptide (SNAP-25 mimetic)AAs8MW1,073.2 g/mol4 sources
Cosmetic Peptide

Matrixyl (Palmitoyl Pentapeptide-4)

A palmitoylated pentapeptide (Pal-KTTKS) derived from a procollagen I fragment, studied for topical collagen support.

Palmitoylated pentapeptideAAs5 (palmitoylated)MW802.05 g/mol6 sources
Melanocortin Peptide

PT-141

A cyclic heptapeptide melanocortin agonist — FDA-approved as Vyleesi for hypoactive sexual desire disorder (HSDD) in premenopausal women.

Cyclic heptapeptideAAs7MW1,025.2 g/mol7 sources
Metabolic Small Molecule

5-Amino-1MQ

A small molecule inhibitor of NNMT (nicotinamide N-methyltransferase) studied for metabolic regulation and adipose tissue browning effects.

Small molecule NNMT inhibitorMW159.21 g/mol (cation) / 286.11 g/mol (iodide salt)8 sources
Circadian Peptide

DSIP

A naturally occurring nonapeptide first isolated from rabbit brain in 1977, studied for sleep regulation, stress response modulation, and circadian rhythm support.

Synthetic nonapeptideAAs9MW848.8 g/mol10 sources
Cellular Peptide

KPV

A synthetic tripeptide from the C-terminal of α-MSH with MCR-independent anti-inflammatory activity and gut-protective properties.

Synthetic tripeptideAAs3MW342.43 g/mol5 sources
Monoamine Transporter Research Compound

Tesofensine

A small molecule that inhibits dopamine, norepinephrine, and serotonin transporters. Phase 2 trials studied appetite and weight outcomes. It is not FDA-approved.

Small-molecule phenyltropane derivativeMW≈259.8 g/mol (free base)4 sources
Modified Neuropeptide Research Product

Adalank

A vendor-marketed modified Selank derivative. Sellers do not use one consistent chemical identity, and direct indexed evidence for Adalank was not found during this review.

Marketed modified neuropeptideAAsVendor identity variesMWNot established2 sources
Copper Peptide Research Compound

AHK-Cu

A copper complex of the Ala-His-Lys tripeptide. Ex vivo and in vitro studies reported effects on human hair follicles and dermal papilla cells. Controlled human efficacy is not established.

Copper-binding tripeptide complexAAs3MWComplex- and counterion-dependent2 sources
Short Peptide Bioregulator

Testagen

A tetrapeptide also identified as KEDG. The available evidence is mainly animal or laboratory work from a limited research lineage. Human clinical benefit is not established.

Synthetic tetrapeptideAAs4MWSequence-dependent; verify the supplied form3 sources
Redox Dye and Small Molecule

Methylene Blue

A phenothiazine redox dye. An FDA-approved intravenous product exists for acquired methemoglobinemia. Research-vendor capsules and droppers are not equivalent to that product.

Phenothiazine dye / redox-active small moleculeMW319.85 g/mol3 sources
Cognitive & Anxiolytic Peptide

Selank

A synthetic heptapeptide tuftsin analog developed by the Russian Academy of Sciences, approved in Russia and Ukraine for anxiety and cognitive enhancement.

Synthetic heptapeptide (tuftsin analog)AAs7MW751.9 g/mol9 sources📖 Read guide
Cognitive & Neuroprotective Peptide

Semax

A synthetic ACTH analog developed by the Russian Academy of Sciences, approved in Russia for stroke recovery and cognitive impairment treatment.

Synthetic heptapeptide (ACTH analog)AAs7MW813.9 g/mol7 sources📖 Read guide
Cellular Peptide BlendBlend

GLOW

A regenerative triple-blend combining BPC-157, TB-500, and GHK-Cu for synergistic tissue repair, angiogenesis, and skin regeneration.

Triple regenerative peptide blend4 sources
Cellular Peptide BlendBlend

KLOW

GLOW plus KPV — a four-compound regenerative blend adding MCR-independent anti-inflammatory and gut-protective properties.

Quad regenerative + anti-inflammatory peptide blend4 sources
Cellular Peptide BlendBlend

Wolverine Stack

A dual-blend of BPC-157 and TB-500 combining complementary regenerative mechanisms: VEGFR2 angiogenesis with actin-mediated cell migration.

Dual regenerative peptide blend4 sources
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