Welcome to Lab Testing, read this first

Welcome to Lab Testing.

Lab Testing covers third-party verification, HPLC, mass spec, endotoxin, reading and interpreting COAs, label-vs-tested differences, and which independent labs you trust.

Ground rules to keep this place useful:

• This is a research-context forum. Discussions are for educational and research purposes only, not human medical advice, not a substitute for a clinician.
• Be specific. If you're sharing an experience, include the practical detail: vendor name (where relevant), reconstitution math, observed effect, timeline.
• Be respectful. We argue about data here, not people.
• Cite sources when you can, links to PubMed, COA PDFs, lab reports, or your own measurements all welcome.
• Don't post solicitations, undisclosed affiliate links, or anything that's clearly an ad.

For the full posting guidelines see our editorial policy and the research-use disclaimer linked from the footer.

Getting around:

• Browse threads by tag (e.g., #bpc-157, #semaglutide, #coa) at the top of any thread.
• Vendor pages live at /vendors, every vendor we cover has lab data and a review thread linked from there.
• New to peptides? The Beginner Questions category is the friendliest place to start.

Thanks for keeping the signal-to-noise ratio high.