A Beginner’s Glossary of Common Research Peptide Names
Research peptide names read like a wall of letters and numbers to anyone new to the space, and there’s no obvious logic to memorize — the naming conventions are inconsistent because they come from different research labs, companies, and eras. Here’s a plain terminology reference for names that come up constantly.
Research Peptide Names: Four Terms to Start With
BPC-157 stands for “Body Protection Compound-157,” a name describing its original research context rather than its chemical structure. It’s a synthetic peptide derived from a sequence found in human gastric juice, and it’s one of the most commonly referenced research peptides in the space, largely due to a substantial body of preclinical research literature around it.
TB-500 is a synthetic version of a segment of Thymosin Beta-4, a protein naturally occurring in nearly all human and animal cells. The “TB” reflects “Thymosin Beta,” and the 500 is simply a lab-assigned reference number rather than a molecular weight or other measurable value — a good example of how these numeric suffixes don’t follow one universal convention.
CJC-1295 is named after the research lab (Conjuchem) where it was originally developed, with “1295” as an internal reference number. It’s a synthetic analog related to growth-hormone-releasing hormone (GHRH), and it’s frequently discussed alongside Ipamorelin because the two are often studied together in combination protocols.
Ipamorelin belongs to a different peptide family — a growth hormone secretagogue, meaning its research interest centers on stimulating growth hormone release through a different receptor pathway than CJC-1295 uses. The “-relin” suffix is a naming convention shared across several related compounds in this general category (a pattern also seen in other secretagogue peptides), which is a useful pattern-recognition shortcut once you notice it.
Why the Naming Is This Inconsistent at All
Research peptide names largely reflect whichever lab, paper, or company first characterized or synthesized a given sequence, with no single global naming authority enforcing a consistent system the way IUPAC nomenclature works for organic chemicals. That’s simply the state of the field — names are historical artifacts of who did the work first, not a designed classification system.
Source: IUPAC — Nomenclature of Organic Chemistry (the “Blue Book”)
This glossary is terminology only — it describes what these names refer to, not dosing guidance. If you’re working with reconstitution math for a peptide by any of these names, our peptide calculator‘s preset dropdown includes several of them to speed up entering known vial strengths.
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Related questions
Where do research peptide names actually come from?
Usually one of three sources: the lab or company that first synthesized the compound, an abbreviation of the source protein it’s derived from, or a purely internal reference number — there’s no single naming authority standardizing it across the field.
How do I read the markings on a U-100 insulin syringe?
A U-100 syringe is calibrated so that 100 units equals 1 mL of solution. Each small marking typically represents 1 or 2 units depending on the syringe size, and the exact unit reading for any dose depends entirely on your mixed concentration.
Does changing the reconstitution volume change the total amount of peptide in the vial?
No — it only changes the concentration (how much peptide is in each mL), never the total amount of peptide originally in the vial. More diluent means a more dilute solution, not less total product.
What do common peptide abbreviations like BPC-157 or TB-500 actually refer to?
These are shorthand names for specific peptide compounds used in research contexts, not brand names or dosing instructions — the abbreviation identifies the compound itself, separate from any reconstitution or dosing decision.