LabFirst Peptides
research-peptides
1403 N Tustin Ave, Santa Ana, CA 92705
Ships / Serves Nationally
LabFirst Peptides is a research peptide supplier in Santa Ana, California. Every size is listed with its price and cost per milligram, and volume tiers are fixed: 10% off 10 to 19 vials of one SKU, 15% off 20. Its release specification is public: identity by LC-MS, purity of at least 99% by RP-HPLC, and net content of at least 85% of the label. Lots are tested by Kovera Labs, an independent laboratory, and each published certificate links to Kovera's own verification page with the lot number printed on the vial. The site reports how many of its sizes carry a lot certificate and leaves the rest blank until their lots are tested. If an independent test of a vial does not match its lot certificate, LabFirst refunds that lot in full with no time limit. The catalog covers Retatrutide, Tirzepatide, Semaglutide, BPC-157, TB-500, GHK-Cu, NAD+, Tesamorelin, MOTS-c, SS-31, Semax, Selank and blends. Orders ship from Santa Ana by USPS with tracking, free over $150. Products are for laboratory research use only, not for human or animal use.
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peptide
Lyophilized research peptide. Lot LF-01B-2609: identity confirmed by LC-MS, purity 99.871% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-05B-2609: identity confirmed by LC-MS, purity 99.612% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-06A-2609: identity confirmed by LC-MS, purity 99.518% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-06B-2609: identity confirmed by LC-MS, purity 99.708% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-11A-2609: identity confirmed by LC-MS, purity 99.682% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-11B-2609: identity confirmed by LC-MS, purity 99.714% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
peptide
Lyophilized research peptide. Lot LF-12A-2609: identity confirmed by LC-MS, purity 99.416% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-15A-2609: identity confirmed by LC-MS, purity 99.748% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-16A-2609: identity confirmed by LC-MS, purity 99.619% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-17A-2609: identity confirmed by LC-MS, purity 99.746% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-18A-2609: identity confirmed by LC-MS, purity 99.786% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
peptide
Lyophilized research peptide. Lot LF-18C-2609: identity confirmed by LC-MS, purity 99.422% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
other
Lyophilized research compound. Lot LF-19B-2609: identity confirmed by LC-MS, purity 99.619% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
other
Lyophilized research compound. Lot LF-19C-2609: identity confirmed by LC-MS, purity 99.766% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-01D-2609: identity confirmed by LC-MS, purity 99.839% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-22B-2609: identity confirmed by LC-MS, purity 99.359% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-29E-2609: identity confirmed by LC-MS, purity 99.761% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-24B-2609: identity confirmed by LC-MS, purity 99.837% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-26A-2609: identity confirmed by LC-MS, purity 99.828% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
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Lyophilized research peptide. Lot LF-26B-2609: identity confirmed by LC-MS, purity 99.736% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
peptide
Lyophilized research peptide. Lot LF-28C-2609: identity confirmed by LC-MS, purity 99.888% by RP-HPLC (Kovera Labs, Sep 29, 2026). Research use only.
5 Questions With Mike Vance
Chief Research Officer · LabFirst Peptides · Santa Ana, California
Q1What's the one peptide you find yourself recommending more than any other right now, and why?
We're a research supplier, so we don't recommend any compound for use. What I recommend more than any peptide is reading the lot certificate before you buy: identity confirmed by LC-MS, purity by RP-HPLC, and the actual net content against the label. Those three numbers tell you more than any brand name.
Q2What's the most common mistake you see people make when they first come to you about peptides?
Trusting a purity percentage on its own. A 99% figure says the material is uniform, not that it's the right molecule or that the vial holds what the label says. A certificate with purity and no identity result or net content has skipped the most important questions.
Q3What's something about the peptide industry the average person would be surprised to learn?
How rarely net content gets tested. Plenty of vials hold noticeably more or less peptide than the label states, and most certificates never measure it. We publish ours for every tested lot, including the ones that came in under label.
Q4If someone reading this is just starting to research peptides, what's the one thing you'd tell them before they buy from anyone?
Match the lot number on the certificate to the vial, then confirm the report with the lab that issued it, not with the seller. If a supplier can't show you a lot-specific certificate you can verify independently, keep looking.
Q5What's a question patients/clients should be asking but usually don't?
"What happens if an independent lab disagrees with your certificate?" A supplier that stands behind its testing should have a written answer. Ours is a full refund on that lot, no time limit.
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