Catalog differences

Research peptide comparisons

Side-by-side notes for sequences that already have live shop URLs. Each page records length or sequence, molecular class, receptor or target class, catalog fill size, and whether a Certificate of Analysis row exists. These pages compare molecules and documentation. They are not protocols.

Class notes are on the mechanism hub. Short definitions are in the RUO glossary. Research-use only.

• Melanotan I vs Melanotan II: Research Comparison

  Compare linear Melanotan I with cyclic Melanotan II: sequence length, melanocortin receptor class, catalog size, and COA rows. Research-use only.

• CJC-1295 / Ipamorelin vs Ipamorelin: Research Comparison

  Compare the CJC-1295 (no DAC) / ipamorelin 5 mg/5 mg fill with ipamorelin 10 mg alone: two receptors, two lots, and separate COA rows.

• Sermorelin vs Tesamorelin: Research Comparison

  Compare sermorelin, a GHRH(1-29) amide, with tesamorelin, a hexenoyl GHRH(1-44) amide: length, modification, 10 mg lots, and COA coverage.

• Semaglutide vs Tirzepatide vs Retatrutide: Research Comparison

  Compare GLP-1, GIP/GLP-1, and GIP/GLP-1/glucagon ligand classes, catalog fills, and which incretin lots have a COA. Research framing only.

• BPC-157 vs TB-500: Research Comparison

  Compare the 15-residue gastric sequence BPC-157 with the thymosin beta-4 fragment TB-500, including blend lots and which COA rows exist.

• Thymosin Alpha-1 vs TB-500: Research Comparison

  Compare 28-residue thymosin alpha-1 with the TB-500 thymosin beta-4 fragment: different thymosin families, 10 mg listings, and COA gaps.

• MOTS-c vs SS-31: Research Comparison

  Compare the 16-residue mitochondrial ORF peptide MOTS-c with the synthetic tetrapeptide SS-31: length, target class, fills, and COA rows.

• GHK-Cu vs GLOW and KLOW: Research Comparison

  Compare the GHK-Cu 50 mg copper tripeptide with the GLOW 70 mg and KLOW 80 mg multi-peptide fills, including component lists and COA rows.