Medical disclaimer

Peptideworth is a publication. It does not test, prescribe, dispense, compound, sell, or supply anything. It operates no pharmacy, no clinic, and no laboratory, and it performs no assay on any product. Reading a page, using a calculator, or emailing us does not create a doctor–patient relationship, a pharmacist–patient relationship, or any other clinical duty of care, and nothing published here has been individualized to your history, your medications, or your bloodwork.

Our stated competence is narrow and we would rather name it than let you assume a wider one. The byline belongs to a research editor whose work is reading trial literature and reporting it accurately. This site claims no medical credential, no medical review board, no peer review, and no named clinical reviewer. If one is ever contracted, the byline and this paragraph will say so.

A handful of the compounds discussed on this site are FDA-approved, for specific indications, with an approved label. Most are not approved for anything, anywhere. When we say a compound is unapproved we mean something concrete:

• no regulator has reviewed a dossier of safety and efficacy evidence for it;
• there is no approved labeling, so there is no authoritative dose, no contraindication list, and no interaction table;
• there is no manufacturing standard it must meet and nobody verifying that a given vial contains what the label says;
• there is no adverse-event reporting pathway attached to it, which is also why the harms literature stays thin.

Related traps we flag on the pages themselves: a listing in a public drug database is not an approval — anyone can file one and nobody checks it — and a registered clinical trial is not a result. A trial that has completed without publishing has told you nothing yet.

Many peptides are sold under a research-use-only label. That phrase describes what a seller may ship without a prescription. It is not a purity grade, not a quality guarantee, not a hint that approval is coming, and not a euphemism. Material sold that way is labeled as unfit for human consumption, and that label is the accurate one.

We describe this category on the site because pretending it does not exist would leave readers with only sellers’ descriptions of it. Describing it is not endorsing it.

When we report what a trial found, that finding attaches to the specific product the trial administered: a defined synthesis, a defined concentration, characterized impurities, stability data, and a supply chain someone was accountable for. A compounded preparation or a gray-market vial of the “same” peptide is a different physical product. Different synthesis route, different excipients, different fill, unverified batch purity, and no bioequivalence study connecting the two.

So a trial result does not transfer to a vial simply because the molecule shares a name. Where a compound is under an active compounding restriction, that restriction is a statement about supply, and a compliant pharmacy declining to sell something is a signal worth reading rather than routing around.

A phase 2 trial is built to answer a narrow question quickly: does this dose do anything measurable in a selected group of people over a short window? It is small, it is short, its participants are screened to be unrepresentative, and it often reads a surrogate endpoint rather than an outcome anyone cares about directly. It is not designed to detect a rare harm, a slow harm, or a benefit that takes years to appear — and a design that cannot detect something is not evidence that the something is absent.

This is why the site labels evidence by tier rather than by adjective. A compound marked animal only has produced nothing in a human being. Early human means a number exists, from a small group, over a short period. Neither is a reason to act; both are reasons to keep watching.

No page here tells you what to take or how much. Where a trial dose is reported, it is a description of what was administered under medical supervision to screened participants — a historical fact about a study, not a schedule for anyone to follow.

The reconstitution calculators are pure arithmetic on three numbers you supply: vial strength, water added, and a dose you have already settled with a clinician. Every field starts empty. There is no preset, no default, and no suggested amount anywhere in the tool, and the arithmetic runs entirely in your browser. The calculator cannot tell you what to inject because it holds no opinion about it — see our editorial policy for why that rule is absolute.

We cover unapproved compounds deliberately, and the reason is worth stating plainly: people are already searching for them, and the pages currently answering those searches are largely written by the people selling them. An accurate account of what a compound’s literature actually shows is a better result than a sales page.

That editorial choice is not an endorsement, and it never becomes a sourcing guide. Pages about unapproved compounds name no vendor, link to no seller, and carry no affiliate link. Nothing on this site instructs anyone to acquire, import, possess, administer, or self-administer any substance. Where the law where you live restricts a substance, that law applies to you; we do not advise on it and cannot exempt you from it.

Pregnancy, breastfeeding, cancer history, thyroid or pancreatic history, kidney or liver function, and every prescription you already take can change whether something is reasonable for you. A generic page cannot weigh any of that.

For unapproved compounds the honest position is starker: there is frequently no interaction data at all. When we write that no interaction has been reported, read it as written — nobody has looked. Absence of a reported harm is not evidence of safety, and this site tries never to let those two sentences blur.

Do not use this site, or any site, to manage an emergency. If you think you are having one, call your local emergency number or go to an emergency department. Never disregard or delay professional medical advice because of something you read here.

If you experience a side effect from a marketed medicine, tell your prescriber, and consider reporting it to your national pharmacovigilance program — in the United States that is the FDA’s MedWatch. Reports of that kind are a large part of what eventually turns anecdote into evidence.

Content on Peptideworth is provided for general information and education, on an “as is” basis, without warranty of any kind. Any reliance you place on it is at your own risk. To the fullest extent permitted by applicable law, we accept no liability for any loss, injury, or damage arising from the use of, or reliance on, anything published here, including any decision to obtain or take a substance. The fuller statement sits in our terms of use.

Nothing in this section limits any liability that cannot lawfully be limited, and nothing in it affects rights you hold under mandatory consumer-protection law where you live. If you believe a statement on this site is wrong, tell us — our corrections policy explains what happens next, and research@peptideworth.com reaches a person.