The Definitive Guide to US-Sourced Research Peptides

C62H98N16O22

BPC-157 (Body Protection Compound-157) is a synthetic pentadecapeptide derived from a naturally occurring protein found ...

C187H291N45O59

Semaglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist that has become one of the most intensely studied pept...

C212H350N56O78S

TB-500 is a synthetic version of the naturally occurring peptide Thymosin Beta-4, a 43-amino acid protein that is found ...

C50H68N14O10

PT-141 (Bremelanotide) is a cyclic heptapeptide that acts as a melanocortin receptor agonist, with particular affinity f...

C152H252N44O42

CJC-1295 is a synthetic analog of growth hormone releasing hormone (GHRH) that has been structurally modified to extend ...

C38H49N9O5

Ipamorelin is a synthetic pentapeptide growth hormone secretagogue that activates the ghrelin/growth hormone secretagogu...

C225H348N48O68

Tirzepatide represents a paradigm shift in metabolic peptide research as the first dual glucose-dependent insulinotropic...

C256H381N67O76S2

Retatrutide is a first-in-class triple hormone receptor agonist that simultaneously activates GLP-1, GIP, and glucagon r...

C14H24CuN6O4

GHK-Cu (copper peptide) is a naturally occurring tripeptide-copper complex first isolated from human plasma, where its c...

C27H36N4O5S

MK-677 (Ibutamoren) is an orally bioavailable, non-peptide growth hormone secretagogue that mimics the action of ghrelin...

C149H246N44O42S

Sermorelin (GHRH 1-29) is a synthetic analog containing the first 29 amino acids of the 44-amino acid human growth hormo...

C221H366N72O67S

Tesamorelin is a synthetic analog of human growth hormone-releasing hormone (GHRH) modified with a trans-3-hexenoic acid...

C47H58N12O6

Hexarelin is the most potent synthetic growth hormone releasing peptide (GHRP) in the hexapeptide class, producing robus...

C46H56N12O6

GHRP-6 (Growth Hormone Releasing Peptide-6) is a first-generation synthetic hexapeptide that stimulates growth hormone r...

C45H55N9O6

GHRP-2 (Growth Hormone Releasing Peptide-2) is a synthetic hexapeptide growth hormone secretagogue with one of the highe...

C78H123N23O23S2

AOD-9604 (Advanced Obesity Drug-9604) is a modified 16-amino acid fragment of human growth hormone corresponding to the ...

C37H51N9O10S

Semax is a synthetic heptapeptide analog of the adrenocorticotropic hormone (ACTH) fragment 4-10, developed in Russia as...

C33H57N11O9

Selank is a synthetic heptapeptide derived from the naturally occurring immunomodulatory peptide tuftsin, with a Pro-Gly...

C14H22N4O9

Epithalon (also known as Epitalon or Epithalone) is a synthetic tetrapeptide based on the naturally occurring peptide ep...

C101H152N28O22S2

MOTS-c (Mitochondrial Open reading frame of the Twelve S rRNA type-c) is a 16-amino acid peptide encoded within the mito...

C32H49N5O5

SS-31 (Elamipretide, MTP-131, Bendavia) is a cell-permeable, mitochondria-targeted tetrapeptide designed using the Szeto...

C129H215N33O55

Thymosin Alpha-1 (Ta1) is a 28-amino acid peptide originally isolated from the thymus gland, where it plays a central ro...

C205H340N60O53

LL-37 is the only human cathelicidin-derived antimicrobial peptide, cleaved from the precursor protein hCAP18 by serine ...

C16H30N4O4

KPV is a naturally occurring tripeptide representing the C-terminal sequence (residues 11-13) of alpha-melanocyte-stimul...

C35H48N10O15

DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide first isolated from rabbit brain during induced...

C50H69N15O9

Melanotan II (MT-II) is a synthetic cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone (alpha-MSH) devel...

Large glycoprotein

Follistatin-344 (FST-344) is a naturally occurring glycoprotein that functions as a potent inhibitor of several TGF-beta...

C78H125N23O23S2

HGH Fragment 176-191 is a 16-amino acid peptide corresponding to the C-terminal region of human growth hormone, identifi...

C400H625N111O115S9

IGF-1 LR3 (Long R3 Insulin-like Growth Factor-1) is a recombinant analog of human IGF-1 modified to have significantly e...

C121H200N42O39

MGF (Mechano Growth Factor) is a 24-amino acid peptide representing the unique E-domain of the IGF-1Ec splice variant, p...

C121H200N42O39 + PEG (typically 2-5 kDa)

PEG-MGF is a modified form of Mechano Growth Factor conjugated with polyethylene glycol (PEG) to extend its plasma half-...

C116H186N32O31S2

Humanin is a 24-amino acid peptide encoded within the mitochondrial 16S ribosomal RNA gene, making it one of the first i...

C27H44N4O4

Dihexa is a synthetic derivative of angiotensin IV developed at Washington State University as a cognitive-enhancing com...

C23H38N6O6

P21 is a synthetic peptide-like compound derived from the active region of ciliary neurotrophic factor (CNTF), designed ...

Peptide mixture (>100 components)

Cerebrolysin is a unique neuropeptide preparation consisting of standardized low-molecular-weight peptide fragments deri...

C63H83N17O14

Kisspeptin-10 is the bioactive C-terminal decapeptide fragment of full-length kisspeptin (kisspeptin-54), a hypothalamic...

C43H66N12O12S2

Oxytocin is a nine-amino acid cyclic neuropeptide hormone synthesized in the hypothalamus and released from the posterio...

C55H75N17O13

Gonadorelin is the synthetic form of endogenous gonadotropin-releasing hormone (GnRH), the hypothalamic decapeptide that...

Heterodimeric glycoprotein (alpha and beta subunits)

Human Chorionic Gonadotropin (HCG) is a glycoprotein hormone naturally produced by placental trophoblast cells during pr...

C177H277N47O52S

Cagrilintide is a long-acting analog of human amylin (islet amyloid polypeptide, IAPP), a peptide co-secreted with insul...

C172H265N43O51

Liraglutide was the first once-daily GLP-1 receptor agonist, representing a significant advance over twice-daily exenati...

C12H13N3O

5-Amino-1MQ is a small molecule inhibitor of nicotinamide N-methyltransferase (NNMT), an enzyme that has emerged as a ke...

C21H27N7O14P2

NAD+ (nicotinamide adenine dinucleotide) is a coenzyme present in all living cells, serving as a critical cofactor for h...

C10H17N3O6S

Glutathione (GSH) is a tripeptide considered the master antioxidant of the body, present in millimolar concentrations in...

C147H237N43O43S

Vasoactive Intestinal Peptide (VIP) is a 28-amino acid neuropeptide widely distributed throughout the central and periph...

C28H26N4O4

SLU-PP-332 is an ERR agonist being researched as an exercise mimetic compound that activates exercise-related gene pathw...

C34H60N14O12S

Argireline (Acetyl Hexapeptide-3) is a synthetic peptide designed to mimic the N-terminal sequence of SNAP-25, a protein...

C26H47N5O6

Matrixyl (Palmitoyl Pentapeptide-4) is a lipidated pentapeptide based on the KTTKS sequence found in the propeptide regi...

C41H70N16O16S

SNAP-8 (Acetyl Octapeptide-3) is an elongated version of Argireline, extending the SNAP-25 mimetic sequence from six to ...

C212H350N56O78S

Thymosin Beta-4 (Tbeta4) is a 43-amino acid naturally occurring peptide that serves as the primary intracellular G-actin...

C54H86N16O15

ARA-290 (cibinetide) is an 11-amino acid peptide derived from the helix B surface of erythropoietin (EPO) that selective...

C229H347N57O68S2

Survodutide (BI 456906) is a dual-acting peptide that activates both GLP-1 and glucagon receptors, designed to leverage ...

C226H346N56O68S

Mazdutide (LY3305677/IBI362) is a dual GLP-1/glucagon receptor agonist developed through collaboration between Eli Lilly...

PEGylated amylin analog (~20-40 kDa total)

Pegapamodutide is a PEGylated analog of amylin designed to achieve long-acting duration suitable for weekly administrati...

Human IgG1 monoclonal antibody (~146 kDa)

Bimagrumab is a fully human monoclonal antibody that blocks the activin type II receptors (ActRIIA and ActRIIB), prevent...

Human monoclonal antibody (~150 kDa)

Trevogrumab (REGN1033) is a fully human monoclonal antibody that directly binds and neutralizes myostatin (GDF-8), preve...

ActRIIB-Fc fusion protein (~90 kDa)

ACE-031 is a soluble fusion protein combining the extracellular domain of the activin type IIB receptor (ActRIIB) with t...

C62H98N16O22

BPC-157 Arginate is a salt form variant of the Body Protection Compound-157 pentadecapeptide, formulated with L-arginine...

C62H98N16O22

Pentadecapeptide BPC (Body Protection Compound) is the core 15-amino acid sequence identified from the larger BPC protei...

Polypeptide complex (multiple components)

Thymalin is a standardized polypeptide complex extracted from calf thymus gland, developed in Russia as an immunomodulat...

C16H19N3O6

Thymogen (L-glutamyl-L-tryptophan) is a synthetic dipeptide that replicates key immunomodulatory activities of natural t...

C14H23N5O8

Pinealon is a synthetic tripeptide bioregulator developed by the St. Petersburg Institute of Bioregulation and Gerontolo...

Polypeptide complex (multiple neuropeptides)

Cortexin is a pharmaceutical neuropeptide preparation consisting of low-molecular-weight polypeptides extracted from ani...

C41H59N11O11

NA-Semax-Amidate represents an optimized form of the nootropic peptide Semax, incorporating both N-terminal acetylation ...

C37H61N11O10

NA-Selank-Amidate is a stability-enhanced variant of the anxiolytic-nootropic peptide Selank, featuring both N-terminal ...

C16H26N4O10

N-Acetyl Epitalon Amidate is a stability-optimized variant of the longevity tetrapeptide Epithalon (Epitalon), incorpora...

C101H152N28O22S2 + PEG (typically 2-5 kDa)

PEGylated MOTS-c is a modified form of the mitochondrial-derived peptide MOTS-c conjugated with polyethylene glycol (PEG...

Variable (SHLP2: C125H205N35O34S2, approximately 2,900 g/mol)

Small Humanin-Like Peptides (SHLPs) comprise a family of six mitochondrial-derived peptides (SHLP1-6) encoded within the...

D-amino acid retro-inverso peptide (~45 amino acids)

FOXO4-DRI is a senolytic peptide designed to selectively induce apoptosis in senescent cells by disrupting the interacti...

Variable (fragments and domains from the ~130 kDa protein)

Klotho peptides are derived from the alpha-Klotho protein, originally identified as a longevity factor in mice where its...

C50H68N14O10

Bremelanotide (PT-141) is an FDA-approved cyclic melanocortin peptide that represents a paradigm shift in sexual dysfunc...

C78H111N21O19

Afamelanotide is a synthetic tridecapeptide analog of alpha-melanocyte-stimulating hormone (alpha-MSH) designed for enha...

C56H78N16O11S2

Setmelanotide is a cyclic peptide MC4R agonist designed with high selectivity for the MC4 receptor over other melanocort...

C77H109N21O19S

Alpha-melanocyte-stimulating hormone (alpha-MSH) is the prototypical melanocortin peptide, derived from the POMC (proopi...

C207H308N56O58S

Adrenocorticotropic hormone (ACTH) is a 39-amino acid peptide hormone secreted by the anterior pituitary gland in respon...

C64H82N18O13

Triptorelin is a synthetic decapeptide analog of gonadotropin-releasing hormone (GnRH) with a D-tryptophan substitution ...

C59H84N16O12

Leuprorelin (leuprolide) is a synthetic nonapeptide GnRH agonist featuring two key modifications from native GnRH: D-leu...

C82H103ClN18O16

Degarelix is a synthetic decapeptide GnRH receptor antagonist that produces immediate and profound suppression of testos...

C164H252N44O55S

Teduglutide is a 33-amino acid analog of human glucagon-like peptide-2 (GLP-2) with a single amino acid substitution (al...

C46H66N12O13

Larazotide (AT-1001) is a synthetic octapeptide derived from the Vibrio cholerae zonula occludens toxin (Zot), designed ...

C37H49N7O9S

Pentagastrin is a synthetic pentapeptide analog of gastrin, the endogenous hormone that stimulates gastric acid secretio...

C57H70N10O9S2

Vapreotide is a synthetic cyclic octapeptide somatostatin analog developed for treatment of acute esophageal variceal bl...

C49H66N10O10S2

Octreotide is a synthetic cyclic octapeptide that mimics the pharmacological actions of native somatostatin with dramati...

C54H69N11O10S2

Lanreotide is a synthetic cyclic octapeptide somatostatin analog structurally related to octreotide but incorporating D-...

C158H258N44O51S

Zilucoplan is a macrocyclic peptide inhibitor of complement component C5, designed to block the terminal complement path...

Compstatin analog with two 20 kDa PEG chains

Pegcetacoplan is a PEGylated cyclic peptide inhibitor of complement component C3, targeting the central convergence poin...

C148H243N49O38S6

Alpha-defensin HNP-1 (Human Neutrophil Peptide-1) is a cationic antimicrobial peptide stored in azurophilic granules of ...

C193H311N61O52S6

Human beta-defensin-2 (hBD-2) is an inducible antimicrobial peptide produced by epithelial cells throughout the body, pa...

C80H122N22O11

Indolicidin is a unique tryptophan-rich antimicrobial peptide isolated from cytoplasmic granules of bovine neutrophils. ...

C143H230N42O37S7

Nisin is the prototypical lantibiotic (lanthionine-containing antibiotic), a class of ribosomally synthesized and post-t...

C115H179N33O26

Magainin-2 is one of the most extensively studied antimicrobial peptides, isolated from the skin of the African clawed f...

C20H38N6O4

Leupeptin is a naturally occurring tripeptide aldehyde isolated from Actinomycetes that serves as a potent inhibitor of ...

C34H63N5O9

Pepstatin A is a potent, naturally occurring inhibitor of aspartic proteases, isolated from Actinomycete fermentation cu...

C16H24N2O4

Bestatin (ubenimex) is a dipeptide analog isolated from Streptomyces olivoreticuli that potently inhibits aminopeptidase...

C98H138N24O33

Bivalirudin is a synthetic 20-amino acid peptide that directly inhibits thrombin through a unique bivalent mechanism. Th...

C35H49N11O9S

Eptifibatide is a cyclic heptapeptide designed to inhibit platelet aggregation by blocking the glycoprotein IIb/IIIa (GP...

C143H244N50O42S4

B-type natriuretic peptide (BNP, also called brain natriuretic peptide based on initial identification site) is a 32-ami...

C143H244N50O42S4

Nesiritide is recombinant human B-type natriuretic peptide identical in sequence to the endogenous 32-amino acid cardiac...