Catalog checked October 1, 2026. Product listings and research can change.
What this site is for
Education and entertainment about research labels, evidence, lab reports, handling concepts, and math. We acknowledge that people use research products personally; the site cannot establish that those products or that use are safe. A disclaimer does not change a product’s intended use.
Start with the research-use-only explanation →
What we use each source for
- Product listings: the seller’s compound name and listed mg in the vial.
- COA lab reports: the issuing lab’s results for a submitted sample. Authenticity and connection to a seller or batch must be checked separately.
- Prescription labels: amounts for a named, finished medicine and its labeled population.
- Human studies: amounts used in a defined study product and participant group.
Each answers a different question. A product listing or lab report does not prove a health benefit.
Testing claims and supplier links
We do not certify suppliers, independently retest their batches, or infer that a laboratory logo proves authenticity. Reports may be copied or altered; verify the original record with the lab and resolve mismatches. Product links identify what is discussed, rather than endorsing personal use.
Our articles and credited summaries
PeptideWhy guides explain topics in our own words. We link to relevant JD BioWorks articles within the explanation. Summaries of JD BioWorks articles are labeled with the publisher, link to the full original, and may include a short credited quote. The full article belongs to its publisher.
Where the chart amounts come from
We write the chart explanations ourselves. Numerical amounts appear only when we can identify a prescription label or human study and link to it. Other compounds say when we have no independently checked numerical amount. Even a study or label amount does not establish an amount for a separately sold research vial. See how to read the chart.
Evidence labels: what they mean
Directions and data for the exact finished medicine named in the label. They do not transfer to an online dry vial.
Find the studied population, formulation, route, amount, duration, design, result, and limitation before comparing claims.
Describes what happened without the controls needed to establish cause.
Identifies a research signal; it cannot establish a human treatment or amount.
Describes reported practice. The people, products, and outcomes may be unverified.
No checkable source has been linked for the claim. We do not treat repetition as proof.
These are source types, not a score for whether a substance works. We do not call a source “strong” merely because it is human; study design and relevance matter. A blank source row means our record is incomplete, not that the literature contains nothing.
How we summarize community reports
Each compound page separates a public survey, when one exists, from individual public posts. We show posts whose stated amount, frequency, cycle, route, and relevant context were checked against the linked text. The cards distinguish a first-person account from a poster describing a subject. If a post omits a field, that field says so. We do not count questions, proposed plans, or a secondhand protocol as something a person actually did.
One or two posts show examples, not what is common. We do not calculate a “community range” from them. A post may discuss a different product, an unverified blend, or other compounds taken at the same time. The card explains that mismatch. Product identity, amount, outcomes, and safety cannot be independently established by a public post. Older thread links remain in our research backlog but are not displayed as verified numeric summaries.
One survey is one source, even if many people answered it. The BPC-157 figure comes from one public self-report survey published April 13, 2026. Its middle 50% of numeric responses describes that survey's respondents across schedules; it is not a safe or representative amount for everyone. A prescription label or human trial is never blended into a community summary. Read the full editorial policy →
What the calculator does
You enter mg in the vial, mixed liquid in mL, and a dose to calculate. The calculator shows the matching liquid volume and U-100 syringe units. It does not choose the dose or schedule. It assumes your entered liquid amount equals the total after mixing; use the measured total if you know it. See what the units mean.
Who runs this site?
PeptideWhy is an independent site. It is not affiliated with JD BioWorks. Links identify the products and articles being discussed.