LabFirst Peptides is a United States supplier of research peptides and laboratory compounds, sold strictly for laboratory and in-vitro research use. 27 compounds are in stock as of this morning's refresh, including GLP-1-class research compounds, copper peptides, growth-hormone-releasing-hormone analogs and mitochondrial peptides, each supplied as a sealed, lot-numbered vial of research material.
Release specification: every lot must show identity confirmed by LC-MS, purity of at least 99% by RP-HPLC, and net content of at least 85% of the labeled amount. A lot that measures under 85% is rejected and never listed. Lots that measure over the label are sold as tested, with the exact measured amount published on the certificate.
What separates one supplier from another is the record that travels with the vial. Every product dossier treats identity, chromatographic purity and net content as separate measurements, publishing the method, result, date, lot and issuing-laboratory verification link only after each field is confirmed. An unverified field remains visibly pending rather than being replaced with a representative certificate or supplier claim. Certificates are searchable by lot number, and every product record states what is established about a compound and, just as deliberately, what is not.
Pricing is stated plainly: volume tiers per size, free standard shipping over $150, same-day dispatch before 12 PM Pacific, and guest checkout with no account required. Nothing on this site is a medicine, a supplement or a treatment for anything: not for human or animal consumption, and not for personal, medical, diagnostic, therapeutic or recreational use.
5 of 5 stars on Google: “Nice website and fast delivery. The compounds were packaged well for shipping. Will buy from again.” — Dac Chim, October 2026
5 of 5 stars on Google: “Dave made my first LabFirst Peptides order easy to sort out. The listing showed the size and cost clearly, and I got a friendly explanation when I needed one. There was time to look over my choices before paying.” — Franky Tan, September 2026
5 of 5 stars on Google: “Dave patiently talked through the product name, listed amount, and form while I was choosing my LabFirst order. A purity report came after purchase, with a result of 99%+.…” — Stephen Chang, September 2026
Every product page lists each size with its price and its cost per milligram. Ten vials of one size save 10%, twenty save 15%. Guest checkout, no account needed.
Order by 12 PM Pacific on a business day and it ships that day from Santa Ana, California, by USPS with tracking.
Every vial carries a printed lot number. Each lot is tested by Kovera Labs, and its certificate is on the product page. Every batch tested on or after October 1, 2026 also includes endotoxin, sterility and fentanyl screening.
LabFirst Peptides is a research peptide supplier in Santa Ana, California. Every lot that has been tested has its certificate published at labfirstpeptides.com/coa/ with the laboratory’s own verification link, and the lot number is printed on each vial so the two can be matched.
Kovera Labs, an independent laboratory. Each lot is tested for identity by LC-MS, purity by RP-HPLC and net peptide content. Every batch tested on or after October 1, 2026 also includes endotoxin, sterility and fentanyl screening, each with its own report. Every report carries a reference number you can check on Kovera’s own site rather than on ours.
No. Kovera Labs confirmed to us on October 1, 2026 that it does not hold an ISO/IEC 17025 or similar accreditation, and we do not claim one. What it does provide is a reference number on every report that resolves on Kovera’s own site, so each certificate can be checked with the lab directly rather than taken from us.
Not yet. A size with a published certificate shows the figures and the report; a size without one shows the field as pending rather than a borrowed number. The current count of certified lots is on the Verify a COA page and changes as results come back from the lab.
From Santa Ana, California, by USPS with tracking on every order. Verified in-stock orders placed before 12 PM Pacific on a business day ship the same day. USPS Ground Advantage is free on orders over $150.
Yes. Guest checkout works for an individual name, email and shipping address; no company account or laboratory credential is required. Ten to nineteen vials of one size save 10%, twenty save 15%, applied in the cart.
No. Listing is not an approval, safety, efficacy, quality or suitability claim. Regulatory status varies by compound, formulation, use and jurisdiction, and each product page states what was verified and when.
No. Everything sold here is for laboratory and in-vitro research use only, not for human or animal consumption, and not for personal, medical, diagnostic, therapeutic or recreational use.