Peptide Research Library
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Selank vs Semax: Two Pro-Gly-Pro Peptides Compared by Structure and Identity
Quick Answer Selank and Semax are both seven-residue synthetic peptides that end in the same Pro-Gly-Pro tail, but their first four residues come from different parent…
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CJC-1295 With DAC vs Without DAC (Mod GRF 1-29): Structure & Identity Compared
Quick Answer CJC-1295 with DAC and CJC-1295 without DAC (Mod GRF 1-29) share the same 29-residue GHRH(1-29) core with four substitutions: D-Ala2, Gln8, Ala15 and Leu27.…
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What Is GHK-Cu? Copper-Peptide Chemistry, Structure & COA
Quick Answer GHK-Cu is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine (Gly-His-Lys). The peptide holds one Cu²⁺ ion through three nitrogen atoms, which turns the powder…
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Cagri-Reta (Cagrilintide + Retatrutide): Composition, Structure & COA
Quick Answer Cagri-Reta is a research blend of two synthetic peptides in one vial: cagrilintide, a long-acting amylin analog (4409.0 g/mol), and retatrutide (LY3437943), a GIP,…
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How to Verify a Peptide COA Is Real (and Spot a Faked One)
Quick Answer To verify a peptide COA, check the vial’s lot number against the report, confirm the named lab exists and is accredited, look the report…
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What Is TB-500? Thymosin Beta-4, Full-Length vs Fragment
Quick Answer TB-500 is a market name used for two different molecules. Some sellers mean full-length thymosin beta-4 (Tβ4), a 43-residue protein of about 4,963 Da.…
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Wolverine Blend (BPC-157 + TB-500): Composition, COA & US Supply (2026)
Quick Answer “Wolverine” is the market nickname attached to a pairing of two research peptides, BPC-157 and TB-500, usually supplied at 10mg each (20mg in total,…
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Ipamorelin vs Sermorelin: GHSR vs GHRH Receptor Research Compared
A Novo Nordisk group in 1998 settled which receptor Ipamorelin works through by blocking it. They applied a GHRH antagonist and the compound’s readout held; they…
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KPV vs BPC-157: Molecular Identity, Pathways and Research Compared
A PubMed search run in late October returns 230 records for BPC-157 and 47 for KPV. Exactly one record names both, and it is a 2026…
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What Is MOTS-c? Structure, Research Use & US Supply
Quick Answer MOTS-c is a 16-amino-acid peptide coded within a short open reading frame of the mitochondrial 12S rRNA gene (MT-RNR1). It was first described in…
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What Is DSIP? Structure, Research Use & US Supply
DSIP is a synthetic nine-residue peptide, WAGGDASGE, listed under the international name Emideltide. On July 24, 2026, it drew the narrowest vote of an FDA advisory…
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What Is Ipamorelin? Structure, GHSR-1a Receptor and COA Guide
Ipamorelin is a synthetic five-residue peptide that acts as an agonist at the ghrelin receptor, GHSR-1a. It started life as a subtraction. Chemists at Novo Nordisk…
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