Epobis

guinea pig

Also seen as: Epobis peptide, EPO-derived peptide Epobis

The Dose Guy’s verdict
Oct 27, 2026
2 sources

Pass on epobis for now. It is a clever idea, a piece of EPO that protects tissue without thickening your blood, but every result it has is from a dish or a rat, and nobody has ever given it to a person. ARA-290 does the same job from the same parent molecule and has actual human trials behind it. If tissue protection or nerve pain is what drew you here, look there instead.

Would I take it?Not yet. ARA-290 instead.

What it is

Erythropoietin, EPO, is the hormone that tells your bone marrow to make red blood cells, and it also protects nerves and other tissue from injury. The trouble is the first job: run real EPO for protection and your blood thickens. Epobis is a short peptide designed from the crystal structure of EPO bound to its receptor, built as several copies of one chain on a branching core, meant to keep the protective signal and drop the red-cell one.

That is exactly the pitch of ARA-290, which also comes from EPO and also skips the blood effect. The difference is the paperwork: ARA-290 went into people with neuropathic pain, and epobis never left the lab. Its newest paper is not even about healing; it has epobis sharpening dopamine agonists like cabergoline against pituitary tumor cells in culture.

What the research shows

No human trials. Zero. Everything below is animal or in-vitro work. Read it as “interesting,” not “evidence it works in you.”

The whole base is cells and rats, and it is small. What it holds:

The discovery work: epobis bound the EPO receptor, drove neurite outgrowth in a way that depended on that receptor, and kept stressed neurons alive in culture.J Neurochem 2012 · cell culture
Injected into rats, it reached both blood and spinal fluid, so it crosses into the brain, and it did not raise red cell production. The non-EPO promise held, in rats.Mediators Inflamm 2016 · rat
It delayed symptoms in a rat model of multiple sclerosis and improved social memory three days after a dose, with no effect on short-term working memory.Mediators Inflamm 2016 · rat
No human trial of epobis exists, and no human dose, schedule, or route has ever been published.as of Oct 2026

Realistic protocols

There is no protocol to give you. No human has a published dose, and the community barely runs this one, so there is not even settled forum lore worth repeating, and I won’t invent a number. If you want the EPO-derived tissue-protection idea in your body, ARA-290 is the version with human dosing to copy. If you run epobis anyway, keep the dose small and the run brief, write down what you take and what you feel, and get a COA on the vial because almost nobody makes it.

Side effects

No human has reported a side effect, because no human has been studied. What deserves respect:

monitorRats made no extra red cells on it. Nobody has checked a person; a before-and-after blood count is the cheap way to find out.
unknownBrain exposure is confirmed in rats. A peptide that reaches your brain with zero human safety data is not a casual experiment.
unknownEPO receptor signaling helps cells survive, and real EPO carries a tumor-growth concern in cancer patients. With any cancer history, skip it.

Where to buy

$48 / 5mg vial$9.60/mg
✓ verified Oct 31

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