Short, snippet-friendly definitions of common research peptide terms.
BPC-157 and TB-500 are two distinct research peptides commonly studied in tissue research literature. They have different origins, different structures, and different characterized mechanisms — but they’re often co-studied because of overlapping research interest. Side-by-Side Comparison BPC-157 TB-500 Length 15…
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A research peptide is a synthetically manufactured peptide compound sold strictly for laboratory research use. Research peptides are not approved drugs — they have not undergone FDA review for human use, and are sold under Research Use Only (RUO) labeling.…
A peptide blend is two or more research compounds co-lyophilized into a single vial, designed for combination research protocols where the components are typically studied together. Blends simplify combination work by ensuring a fixed dose ratio and unified COA. Why…
Mass spectrometry (MS) is an analytical technique that measures the molecular weight of compounds by ionizing them and measuring their mass-to-charge ratio. For research peptides, MS is the standard way to confirm a synthesized compound’s identity — does the peptide…
A receptor agonist is a molecule that binds to and activates a cellular receptor, producing a biological signal that mimics the receptor’s natural ligand. Agonists are central tools in pharmacology research because they let scientists study what happens when a…
“Research Use Only” (RUO) means a product is sold strictly for laboratory research and is not approved for human consumption, veterinary use, or use as a food additive. Statements about RUO products have not been evaluated by the US Food…
An endotoxin test measures the level of bacterial endotoxin contamination in a research compound. Endotoxins are lipopolysaccharide (LPS) fragments from bacterial cell walls that can contaminate any peptide synthesis. Even at sub-nanogram-per-milliliter levels, endotoxins activate inflammatory pathways and can completely…
Lyophilization is freeze-drying — a controlled process that removes water from a peptide solution through sublimation under vacuum, leaving a dry, stable cake or thin film inside the vial. Done right, it produces a peptide product that’s stable at room…
BAC water (bacteriostatic water) is sterile water containing 0.9% benzyl alcohol as a preservative. It’s the standard solvent for reconstituting lyophilized research peptides. The benzyl alcohol inhibits bacterial growth in the reconstituted solution, extending stability from hours (with plain sterile…