BPC-157 and TB-500 compared
Two repair peptides with different mechanisms. What each is studied for, what the evidence supports, and how handling differs.
Every compound we stock, with the analytical data behind it and the certificate for the batch currently on the shelf.
These pages are written for people who want to know what a molecule actually is and what question the research is asking of it. Grouped by research area, because that is how most people arrive.
BPC-157 vs TB-500
How the two differ, and why they are frequently supplied together.
Cellular research compounds
Copper peptides, antioxidants and the combination preparations.
Freeze thaw cycles and shelf life
What degrades a peptide in practice, how much a freeze thaw cycle actually costs you, and how to plan aliquots so it stops mattering.
Growth hormone research compounds
Secretagogues against releasing hormones against growth hormone itself.
How to choose a research peptide supplier
Nine questions that separate a supplier running real analysis from one reselling someone else’s paperwork, and what each answer actually tells you.
How to read a certificate of analysis
A section by section walkthrough of a peptide certificate: what each figure means, what it does not mean, and the checks worth making before you accept a batch.
Longevity research compounds
NAD+, Epitalon, SS-31 and MOTS-c, and what distinguishes each.
Metabolic research compounds
Receptor targets, dual against triple agonism, and the regulatory position.
NAD+, NMN and NR compared
Three related molecules routinely treated as interchangeable in discussion. How they differ and which your protocol actually needs.
Net peptide content, and why purity is not the same thing
A vial at 99 percent HPLC purity can be around 75 percent peptide by mass. Where the rest goes, and when the difference matters.
Quality and verification
How every batch is tested, what the certificate of analysis shows, and how to read it.
Reconstitution and solvents
Choosing a solvent, adding it without damaging the peptide, working out concentrations, and the handling errors that cost people a vial.
Recovery research compounds
The compounds studied in tissue repair models, and how they differ.
Storage and handling
Temperature, light, reconstitution and shelf life, and what actually degrades a compound in practice.
Tirzepatide and retatrutide compared
Dual against triple receptor agonism. What each targets, how the pharmacology differs, and where each sits regulatorily.
Tirzepatide vs retatrutide
Dual against triple agonism, and where each sits in development.
What a purity figure actually means
HPLC purity, net peptide content, and why two suppliers quoting 99 percent are not necessarily selling the same thing.
What is BPC-157
The sequence, what it derives from, and the models it has been studied in.
What is Epitalon
The tetrapeptide sequence, its origin, and the two spellings.
What is GHK-Cu
The copper complex, and why this one is legitimately blue.
What is glutathione
The structure, and why oxidation makes this one awkward to store.
What is ipamorelin
The sequence, and what selective secretagogue means.
What is MOTS-c
The sequence, and what makes a mitochondrial derived peptide different.
What is NAD+
The structure, the cofactor role, and why it stores differently to the peptides.
What is retatrutide
The triple receptor mechanism, and how it differs from tirzepatide.
What is SS-31
The sequence, and why elamipretide and MTP-131 are the same thing.
What is TB-500
The fragment sequence, and the difference between TB-500 and thymosin beta-4.
Question not answered here?
Ask us about any compound in the catalogue and a real person will answer.