# About Dr. TB-500 — an independent editorial reading room

> Dr. TB-500 is an independent editorial project that summarizes the peer-reviewed research on Thymosin Beta-4 and the synthetic TB-500 fragment.

What this site is, what it is not, and the standards under which it is written.

## What this site is

Dr. TB-500 is an independent editorial project that publishes summaries of the peer-reviewed research literature on Thymosin Beta-4 and the synthetic TB-500 fragment derived from it. We are not a clinic. We do not employ clinicians and we do not provide medical advice. We do not manufacture, sell, or distribute any product, and we are not affiliated with any vendor, contract research organization, or commercial sponsor in this field. Our work is editorial commentary on publicly available science.

The word 'Dr.' in the site name is an editorial framing — a position the publisher occupies relative to a body of research, in the way a magazine might be called 'The Editor' without implying a building full of editors-in-chief. It is not a claim about the site's services. There is no doctor behind it, no clinic behind it, no telehealth product behind it, and no consultation, prescription, or treatment offering of any kind. The site is, plainly, a reading room.

## How the site is built

Each page is composed as a small editorial catalog — what we call a 'plate.' The aesthetic register is photographic-portfolio minimalism, which is appropriate to the underlying material: the TB-500 story is a quiet one (a 7-amino-acid synthetic fragment marketed where a 43-amino-acid parent molecule was studied), and the honest editorial answer is a slow, image-led, generously-spaced presentation. The plates do the arguing; the type stays out of the way.

Every quantitative claim on the site is cited to a peer-reviewed source listed in the References table. Where the published record is silent — for example, on the human pharmacokinetics of the synthetic 7-amino-acid fragment — we say so explicitly. We have tried to write a site that is honest about what is known, what is plausible by extrapolation, and what is genuinely open.

## Editorial standards

Five principles guide the writing.

First, we distinguish the synthetic 7-amino-acid TB-500 fragment from the 43-amino-acid recombinant Thymosin Beta-4 parent peptide at every opportunity. The two are routinely treated as interchangeable in commercial materials. In the peer-reviewed literature, they are not. Virtually all of the published clinical and large-mammal data belongs to the parent.

Second, we cite primary sources. PubMed, PMC, the journal of record. The References page lists each source with DOI and either a PubMed or a PMC URL. We do not cite vendor pages, forum posts, or aggregator summaries for primary claims.

Third, we describe research findings; we do not recommend anything. Doses appear on the site only as research context, attached to species, route, model, and outcome. No human dosing recommendation is made or implied.

Fourth, we include the negative results. The porcine cardiac translation negative [23], the ARISE-3 dry-eye Phase III missed primary endpoint, the hepatic-stellate-cell pro-fibrotic finding [21], the withdrawn RGN-352 Phase II trial — these are part of the record and they are on the site. We are not building a Tβ4 marketing brochure.

Fifth, we do not sell anything, recommend any vendor, link to other portfolio sites, or accept advertising. The site exists because someone needed to write this version of the TB-500 record — quietly, plate by plate.

## What this site is not

It is not a clinic. There is no physical address, no clinical staff, no prescriber, no compounding pharmacy, no telehealth interface. If you are seeking medical care, please consult a qualified healthcare professional in your jurisdiction.

It is not a vendor or vendor-affiliated.

It is not a primary research publication. The plates here summarize and contextualize peer-reviewed research; they do not generate new data, run experiments, or publish original findings.

It is, plainly, a reading room — editorial commentary on publicly available science. The distinction matters and the site tries to hold it clearly in view.

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An independent editorial reading of the peer-reviewed literature — not a clinic, not a vendor, not a recommendation.