Peptides and tissue repair
The regeneration literature is older than most of this catalogue and largely built on animal models. That is worth knowing up front, because it shapes what the papers can and cannot show.
Repair is a local process
Tissue that has been damaged goes through a sequence: inflammation, new blood vessel formation, matrix deposition, remodelling. Each stage is driven by signalling molecules, and each stage is a separate place where a peptide could in principle intervene. Most of the research here is about identifying which stage a given compound touches.
That is also why the results are hard to generalise. A compound that influences angiogenesis in a rat tendon model has demonstrated something specific about that model. Extrapolating it to a different tissue, let alone a different species, is a step the papers themselves are usually careful not to take.
The two most studied molecules here are frequently discussed as a pair, largely because early work looked at them side by side. They are not variants of each other and their proposed mechanisms differ.
What is being investigated- Angiogenesis and new vessel formation
- Fibroblast migration and matrix deposition
- Inflammatory signalling in the early repair phase
- How much of the work is in vivo versus in vitro
Where this sits legally
Neither of the two main compounds in this area holds an approval anywhere. That is worth knowing before you read a page elsewhere that implies otherwise.
Compounds studied here
Four items, including the one capsule product where the gut is the target.
What this page leaves out
Nothing here says a compound heals anything. The regeneration work is largely animal research examining specific stages of a repair process in specific tissues, and the papers themselves are careful not to generalise beyond that. We are not going to be less careful than the researchers were.
Read before you order
Where the regeneration literature is strong, and where it is a single research group.
BPC-157
A fifteen-residue sequence derived from a protein in gastric juice, and the literature it rests on.
Read CompoundTB-500
A fragment of thymosin beta-4 that is routinely sold under the name of the whole protein.
Read ComparisonBPC-157 vs TB-500
Where the two overlap, where they do not, and why they are so often named together.
Read PracticeStorage and shelf life
Regeneration work often runs over weeks, which makes how you store material between sessions a variable in its own right.
ReadQuestions about this area
Largely about how far animal work can reasonably be extrapolated.
Why are BPC-157 and TB-500 always mentioned together?
How strong is the evidence in this area?
Is TB-500 the same as thymosin beta-4?
Why is there a capsule product in this area?
Does purity matter more for these compounds?
Judge the material, not the claims
We can tell you what is in the vial and prove it. What the literature shows is set out on the compound pages, including where it is thin. Everything else is someone else’s marketing.
For laboratory and research use only. Not for human or animal consumption. Not a medicine and not a food supplement. Sold to persons aged 18 and over. Compounds named on this page may appear on the WADA prohibited list.



