https://peptide.express Research-grade peptides and laboratory reagents supplied for in-vitro laboratory research use only. Wed, 29 Jul 2026 20:11:18 GMT retatrutide Retatrutide (development code LY3437943) is an investigational synthetic 39-amino-acid peptide that agonizes three receptors at once: GLP-1R (the glucagon-like peptide-1 receptor), GIPR (the glucose-dependent insulinotropic polypeptide receptor), and GCGR (the glucagon receptor). Molecular weight 4,731 Da, CAS 2381089-83-2. The molecule is fatty-acylated, which is what gives it a plasma residence time long enough for once-weekly dosing in the clinical trial programs. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/retatrutide https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1772089707783-mjmvxxiadn.png in_stock 50.00 USD new Peptide.Express no retatrutide 6975 Vials no glp-tirz Tirzepatide (development code LY3298176) is a synthetic 39-amino-acid peptide that agonizes both GLP-1R (the glucagon-like peptide-1 receptor) and GIPR (the glucose-dependent insulinotropic polypeptide receptor). Molecular formula C225H348N48O68, molecular weight 4,813.5 Da, CAS 2023788-19-2. A C20 fatty diacid is attached at Lys20; that acyl chain binds serum albumin reversibly, which is what stretches the plasma half-life to roughly five days in published clinical pharmacokinetics and makes once-weekly administration workable in trials. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/glp-tirz https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1782871956159-xlu3ptutu5b.png in_stock 65.00 USD new Peptide.Express no glp-tirz 6975 Weight Loss no tesamorelin Tesamorelin is a synthetic analog of growth hormone-releasing hormone (GHRH), built on the full 44-amino-acid GHRH sequence and stabilized by a trans-3-hexenoyl modification at the N-terminus. Molecular formula C221H366N72O67S, molecular weight 5,135.9 Da, CAS 218949-48-5. It is also catalogued as TH9507. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/tesamorelin https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1775682908120-tqc7ewvl3ya.png in_stock 50.00 USD new Peptide.Express no tesamorelin 6975 Growth, Weight Loss no mots-c MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA Type-C) is a 16-amino-acid peptide encoded within mitochondrial DNA — specifically translated from a short open reading frame in the 12S ribosomal RNA gene, MT-RNR1. Amino acid sequence: MRWQEMGYIFYPRKLR. Molecular formula C101H152N28O22S2, molecular weight 2,174.6 Da, CAS 1627580-64-6. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/mots-c https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1772088315618-uolsyeuoqj.png in_stock 45.00 USD new Peptide.Express no mots-c 6975 Metabolic, Weight Loss, Longevity no klow-blend KLOW Blend is a four-peptide regenerative research formulation combining KPV (Lys-Pro-Val), GHK-Cu (glycyl-L-histidyl-L-lysine copper complex), BPC-157 (Body Protection Compound-157, a 15-amino-acid gastric pentadecapeptide), and TB-500 (synthetic Thymosin β-4). The name is an acronym of its components — K for KPV, L for the lysine-containing copper tripeptide, O and W following the earlier GLOW naming convention. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/klow-blend https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1778689461845-f5c86yfyk64.jpeg in_stock 100.00 USD new Peptide.Express no klow-blend 6975 Recovery, longevity, Blends no cjc-1295-ipamorelin-NO-DAC CJC-1295 + Ipamorelin (No DAC) is a two-peptide research formulation combining CJC-1295 without DAC — a 29-amino-acid GHRH analog also known as Modified GRF(1-29) or Mod GRF 1-29 (C152H252N44O42, 3,367.9 Da, CAS 863288-34-0) — with ipamorelin, a selective GHSR-1a agonist pentapeptide (Aib-His-D-2-Nal-D-Phe-Lys-NH2, C38H49N9O5, 711.85 Da, CAS 170851-70-4). The standard vial supplies 5 mg of each component. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/cjc-1295-ipamorelin-NO-DAC https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1772091035985-y43z6x4q9cb.png out_of_stock 60.00 USD new Peptide.Express no cjc-1295-ipamorelin-NO-DAC 6975 Growth, Blends no peptide-ghk-cu GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring copper-binding tripeptide found in human blood plasma, saliva and urine. Molecular formula C14H24CuN6O4, molecular weight 403.9 Da as the copper complex — 340.4 Da for the free tripeptide without copper. CAS 89030-95-5. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/peptide-ghk-cu https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1772089341725-q04idcz8yb9.png in_stock 40.00 USD new Peptide.Express no peptide-ghk-cu 6975 Longevity no nad NAD+ (nicotinamide adenine dinucleotide, oxidized form) is a dinucleotide coenzyme — not a peptide — composed of an adenosine monophosphate unit joined to nicotinamide mononucleotide through a phosphoanhydride bond. Molecular formula C21H27N7O14P2, molecular weight 663.4 Da, CAS 53-84-9. It contains no amino acids and no peptide bonds, and it is listed alongside research peptides here only because the metabolic questions it answers overlap with theirs. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/nad https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1772403308872-dyqji5edkfn.png in_stock 60.00 USD new Peptide.Express no nad 6975 Vials no ss-31 SS-31 (elamipretide) is a synthetic, cell-permeable tetrapeptide that binds cardiolipin in the inner mitochondrial membrane. Sequence: D-Arg-2',6'-Dmt-Lys-Phe-NH2, where 2',6'-Dmt is 2',6'-dimethyltyrosine, a non-proteinogenic aromatic residue. Molecular formula C32H49N9O5, molecular weight 639.8 Da, CAS 736992-21-5. It belongs to the Szeto-Schiller (SS) peptide series developed by Hazel Szeto and Peter Schiller, and also appears in the literature under the development codes MTP-131 and Bendavia. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/ss-31 https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1782872730271-6plw95ligcm.png in_stock 55.00 USD new Peptide.Express no ss-31 6975 no wolverine-blend-bpctb500 Wolverine Blend is a two-peptide research formulation combining BPC-157 (Body Protection Compound-157, a 15-amino-acid gastric pentadecapeptide, GEPPPGKPADDAGLV, 1,419.5 Da) and TB-500 (synthetic Thymosin β-4, 4,963.4 Da, containing the LKKTET actin-binding motif). Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/wolverine-blend-bpctb500 https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1782870858857-316xlmhv3i3.png in_stock 75.00 USD new Peptide.Express no wolverine-blend-bpctb500 6975 Blend, Recovery no kisspeptin Kisspeptin-10 (KP-10) is the 10-amino-acid C-terminal fragment of kisspeptin, the peptide product of the KISS1 gene, and acts as an agonist at GPR54 — the G protein-coupled receptor also designated KISS1R. Sequence: Tyr-Asn-Trp-Asn-Ser-Phe-Gly-Leu-Arg-Phe-NH2 (YNWNSFGLRF-NH2). Molecular formula C63H83N17O14, molecular weight 1,302.5 Da, CAS 374675-21-5. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/kisspeptin https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1775246950948-5lk1w78ealh.png out_of_stock 40.00 USD new Peptide.Express no kisspeptin 6975 Growth, Fertility no melanotan-ii Melanotan 2 (also written Melanotan II, or MT-2) is a synthetic cyclic heptapeptide analog of α-melanocyte-stimulating hormone that acts as a non-selective agonist at four of the five melanocortin receptors: MC1R, MC3R, MC4R and MC5R. Molecular formula C50H69N15O9, molecular weight 1,024.2 Da, CAS 121062-08-6. Structure: Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/melanotan-ii https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1775685917707-fjl1y971suj.png in_stock 50.00 USD new Peptide.Express no melanotan-ii 6975 no bpc-157 BPC-157 (Body Protection Compound-157) is a synthetic 15-amino-acid pentadecapeptide derived from a protein sequence found in human gastric juice. Amino acid sequence: GEPPPGKPADDAGLV (Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val). Molecular formula C62H98N16O22, molecular weight 1,419.5 Da, CAS 137525-51-0. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/bpc-157 https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1772088080487-qeytwe3arel.png in_stock 40.00 USD new Peptide.Express no bpc-157 6975 Vials no tb-500 TB-500 is the research-market name for synthetic Thymosin β-4 (Tβ4), an endogenous protein present in virtually all nucleated human cells at cytosolic concentrations of roughly 0.5 mM — one of the most abundant intracellular proteins there is. Molecular weight 4,963.4 Da, CAS 77591-33-4. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/tb-500 https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1772089038429-ndaqui7f6ul.png out_of_stock 30.00 USD new Peptide.Express no tb-500 6975 Recovery, Healing no mitochondrial-fuel-stack The Mitochondrial Fuel Stack is a two-component research kit pairing MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA Type-C, sequence MRWQEMGYIFYPRKLR, C101H152N28O22S2, 2,174.6 Da, CAS 1627580-64-6) with NAD+ (nicotinamide adenine dinucleotide, C21H27N7O14P2, 663.4 Da, CAS 53-84-9), supplied as separate lyophilized vials with an individual Certificate of Analysis for each. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/mitochondrial-fuel-stack https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1775684089383-e4gtpx3fcor.png in_stock 100.00 USD new Peptide.Express no mitochondrial-fuel-stack 6975 Vials, Kits no ipamorelin Ipamorelin is a synthetic pentapeptide and selective agonist at the growth hormone secretagogue receptor GHSR-1a, the receptor endogenous ghrelin acts on. Sequence Aib-His-D-2-Nal-D-Phe-Lys-NH2, molecular formula C38H49N9O5, molecular weight 711.85 Da, CAS 170851-70-4. It belongs to the growth hormone releasing peptide (GHRP) class. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/ipamorelin https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1775686180866-q0osn4cydo.png in_stock 60.00 USD new Peptide.Express no ipamorelin 6975 no dsip DSIP (delta sleep-inducing peptide) is an endogenous nonapeptide with the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE), first isolated in 1977 from the cerebral venous blood of rabbits undergoing induced slow-wave sleep. Molecular formula C35H48N10O15, molecular weight 848.8 Da, CAS 62568-57-4. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/dsip https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1775684828986-6sjgjhqj2en.png out_of_stock 45.00 USD new Peptide.Express no dsip 6975 Recovery no sermorelin Sermorelin is a synthetic 29-amino-acid peptide corresponding to the biologically active N-terminal fragment of growth hormone-releasing hormone, formally designated GHRH(1-29)NH2 or GRF(1-29)NH2. Molecular formula C149H246N44O42S, molecular weight 3,357.9 Da, CAS 86168-78-7. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/sermorelin https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1775247242483-hh0lxpixw4e.png out_of_stock 70.00 USD new Peptide.Express no sermorelin 6975 Growth no pt-141 PT-141 (bremelanotide) is a synthetic cyclic heptapeptide that acts as a melanocortin receptor agonist, with its principal research activity at the MC3R and MC4R subtypes expressed in the central nervous system. Molecular formula C50H68N14O10, molecular weight 1,025.2 Da, CAS 189691-06-3. Structure: Ac-Nle-cyclo(Asp-His-D-Phe-Arg-Trp-Lys)-OH. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/pt-141 https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1772090535385-akej1b0mjbu.png out_of_stock 55.00 USD new Peptide.Express no pt-141 6975 Sexual Health no bpc-157-tb500-kit The BPC-157 + TB-500 Research Kit supplies the two Wolverine Stack components as separate lyophilized vials rather than a single pre-combined blend. BPC-157 (GEPPPGKPADDAGLV, 1,419.5 Da, CAS 137525-51-0) and TB-500 (synthetic Thymosin β-4, 4,963.4 Da, CAS 77591-33-4), each at ≥99% purity by HPLC with an individual Certificate of Analysis. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/bpc-157-tb500-kit https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1775585741045-xlwp89601a7.png out_of_stock 70.00 USD new Peptide.Express no bpc-157-tb500-kit 6975 Vials, Kits no epithalon Epithalon (also spelled Epitalon) is a synthetic tetrapeptide with the amino acid sequence Ala-Glu-Asp-Gly, abbreviated AEDG. Molecular formula C14H22N4O9, molecular weight 390.3 Da, CAS 307297-39-8. Four residues makes it one of the smallest peptides in research circulation — smaller than GHK-Cu, and roughly a twelfth the mass of TB-500. Characterised to ≥99% purity by reverse-phase HPLC with LC-MS/MS identity confirmation; batch-specific Certificate of Analysis included. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/epithalon https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1775247628224-g4xjwurjvkv.png in_stock 50.00 USD new Peptide.Express no epithalon 6975 Recovery, Sleep no bacteriostatic-water Bacteriostatic Water for Injection is sterile water preserved with 0.9% benzyl alcohol (9 mg/mL), used as a diluent for reconstituting lyophilized compounds. It is not a research compound, has no pharmacological activity of its own, and is not intended to produce any biological effect — its entire function is to dissolve something else while resisting microbial growth between accesses to the vial. Supplied as Sterile Water for Injection Preserved with 0.9% Benzyl Alcohol. All products are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Consult the published literature for research application guidance. https://peptide.express/catalog/bacteriostatic-water https://clipyaoahwqpwtqknvae.supabase.co/storage/v1/object/public/product-images/1773411065634-9ksfvj29d0g.png in_stock 5.00 USD new Peptide.Express no bacteriostatic-water 3002 Supplies no