Research library
Peptide research, documented
Reference reading on the compounds we supply — sequences, mechanisms, handling, and the published literature. For in-vitro research use.
Incretin peptidesOzempic, Mounjaro and retatrutide: the differenceOne receptor, two, then three: semaglutide is GLP-1 only, tirzepatide adds GIP, retatrutide adds glucagon. Brand names, CAS and the published trials.August 31, 2026Incretin ResearchRetatrutide and Tirzepatide: What's the DifferenceRetatrutide is a triple agonist (GLP-1, GIP, glucagon), tirzepatide a dual one (GIP, GLP-1). Targets, sequence class and CAS. In-vitro reagents.August 8, 2026Research GuideGHK-Cu and GHK: the copper peptide differenceGHK is the free tripeptide Gly-His-Lys; GHK-Cu is the same peptide bound to a copper(II) ion. The copper form is the one studied. Research use only.August 7, 2026BioregulatorsKhavinson Peptide Bioregulators: Epithalon, Selank, SemaxShort peptides from the Khavinson research school: Epithalon is a pineal AEDG analogue, Selank a tuftsin analogue, Semax an ACTH(4–10) analogue.August 6, 2026Mitochondrial ResearchMOTS-c and SS-31: two mitochondrial peptides comparedMOTS-c is encoded by the mitochondrial genome and studied in AMPK models; SS-31 is a synthetic tetrapeptide that concentrates at the inner membrane.August 5, 2026Compound OverviewAOD-9604: the modified hGH fragment 176-191AOD-9604 is a 16-amino-acid analogue of the hGH C-terminus (176-191) with an N-terminal tyrosine added. CAS 221231-10-3, research use only.May 13, 2026Practical GuidePeptide COA: HPLC, mass spec, water, endotoxinHPLC shows the sample is pure; mass spec shows the pure thing is the peptide you ordered. Then water, endotoxin, and the marks of a faked COA.May 13, 2026Research GuidePeptide stacks: BPC-157 + TB-500, Selank + SemaxThe four pairings that recur in the preclinical literature: BPC-157 + TB-500, CJC-1295 + Ipamorelin, Epithalon + Pinealon, Selank + Semax.May 13, 2026Practical GuidePeptide Storage and Reconstitution: Lyophilized VialsLyophilized vials keep at 2–8°C in the dark, or −20°C for the long term; reconstitute at room temperature with bacteriostatic water down the vial wall, and aliquot before freezing.May 13, 2026Research GuideSelank and Semax: What's the DifferenceTwo different molecules: Selank is a tuftsin analogue, Semax an ACTH(4-10) fragment. Sequences, targets, and how they differ. Reagents held in Chișinău.May 13, 2026Sourcing GuideCertified Peptide Supplier in Europe: What to CheckNo EU body issues a certified peptide supplier credential. What counts is laboratory accreditation, batch-level documentation and the REACH exemption.May 12, 2026Stack GuideCJC-1295 + Ipamorelin: GHRH/GHRP Stack, DAC or No-DACCJC-1295 without DAC has a ~30-minute half-life; with DAC, 6–8 days. Ipamorelin is a selective GHS-R1a agonist. Research use only.May 12, 2026Longevity ResearchEpithalon (Epitalon, AEDG): Telomerase and Telomere LengthEpithalon is the tetrapeptide Ala-Glu-Asp-Gly, studied for telomerase activation in cell culture. Khavinson lineage, sparse replication. Research use only.May 12, 2026Research GuideBPC-157 and TB-500: The Difference in MechanismBPC-157 is a 15-amino-acid pentadecapeptide from gastric juice; TB-500 is a 43-residue thymosin beta-4 analogue. Separate pathways, separate CAS numbers.April 1, 2026Longevity ResearchLongevity Peptides: SS-31, MOTS-c, Epithalon, HumaninSS-31 targets cardiolipin at the inner mitochondrial membrane, MOTS-c activates AMPK, Epithalon telomerase, Humanin is a mitochondrial micropeptide.April 1, 2026Sourcing GuideResearch Peptides in Eastern Europe: Sourcing and CustomsEastern European labs pay for long transit and stricter customs checks. What to verify in a supplier, how the paperwork clears, and delivery times.April 1, 2026Compound SpotlightRetatrutide: Triple GIP, GLP-1 and Glucagon Co-AgonistRetatrutide (LY3437943) activates GIP, GLP-1 and glucagon receptors at once — the glucagon arm is what separates it from tirzepatide. Research use only.April 1, 2026Compound ProfileBPC-157: sequence, mechanism and the published studiesBPC-157 is a 15-amino-acid gastric pentadecapeptide, CAS 137525-51-0, stable in gastric juice. What the preclinical literature covers, and handling.March 31, 2026GuidePeptide Reconstitution: BAC Water and Concentration MathBacteriostatic water goes down the vial wall, then 1–2 minutes to dissolve without shaking. Concentration: mg × 1000 ÷ mL = mcg/mL. Hold at 2–8°C.March 31, 2026GuideWhat Are Peptides? Structure and Difference From ProteinsA peptide is a chain of 2 to 50 amino acids joined by peptide bonds; past about 50 the chain is called a protein. Structure, classes, purity testing.March 31, 2026
