Likwid Labs USA is a research peptide platform. We work with audited US manufacturing partners, verify every batch against its HPLC data and Certificate of Analysis, publish one fixed retail price for the catalog, and let authorized resellers sell that verified catalog through their own branded storefront. Everything we list is strictly for laboratory research use.
Every compound we list is synthesized by a US-based manufacturing partner operating to cGMP-style process controls.
Reverse-phase HPLC for purity and mass spec for identity confirmation, run per batch — not per product line.
A Certificate of Analysis naming the batch, method, date, and testing lab is kept on file and available on request.
Insulated, tracked two-day shipping. $20 flat, free on research orders over $500.
Four steps, in order, every time. Nothing skips the queue.
We review the manufacturing partner's facility documentation, synthesis process, and testing methodology before a single product is listed.
Incoming batches are matched against their HPLC chromatogram and COA. Anything that doesn't reconcile doesn't ship.
The compound goes live with its spec, strength, stock state, and our fixed retail price — the same numbers every shopper sees.
Vetted vendors and distributors sell from that verified catalog through their own Likwid storefront. They resell; they don't manufacture.
These are two different roles, and the distinction matters. Nobody selling on Likwid is described as a lab unless they are one.
Synthesizes the compound. US-based facility, cGMP-style process controls, in-house and third-party HPLC, and a Certificate of Analysis per batch. We audit them; we do not name them publicly, because supply relationships are confidential.
Sells the verified Likwid catalog through their own storefront. Vendors set their own retail prices; distributors sell at our fixed retail pricing. Resellers do not synthesize, test, or repackage material, and they are never presented as a laboratory.
Emil Fischer and Franz Hofmeister independently propose that proteins are chains of amino acids linked by what Fischer names the peptide bond. The vocabulary of modern biology begins.
Banting, Best, Macleod, and Collip isolate insulin from canine pancreas in Toronto. A 14-year-old patient becomes the first human ever treated. The Nobel Prize follows two years later.
Frederick Sanger publishes the complete amino acid sequence of insulin — the first protein ever sequenced. It proves proteins have defined structures, opening the door to rational peptide design.
Bruce Merrifield invents SPPS, building peptides one amino acid at a time on a resin bead. What once took a year now takes days. Merrifield wins the 1984 Nobel.
Genentech produces human insulin in E. coli — the first recombinant pharmaceutical. Peptides go from extraction to industrial biotechnology.
Exenatide, a synthetic version of a peptide first isolated from Gila monster venom, is approved for type 2 diabetes. The GLP-1 era begins quietly.
Long-acting incretin analogs reshape metabolic research. Peptides move from a niche corner of pharma to one of the most-watched fields in biology.
Every peptide in our catalog has a paper trail — a lab where it was first isolated, a researcher who named it, and a body of literature that explains why anyone studies it at all.
Isolated from a protective protein in human gastric juice by Predrag Sikiric's group in Zagreb. Studied for over three decades in tendon, ligament, and GI tract repair models — one of the most-cited peptides in regenerative literature.
Discovered by Dr. Loren Pickart while studying why young blood plasma extends the lifespan of liver cells in culture. The active fragment turned out to be three amino acids bound to a copper ion — now a foundational tool in dermal and matrix research.
Synthesized at the St. Petersburg Institute of Bioregulation and Gerontology by Vladimir Khavinson, derived from epithalamin extracted from the pineal gland. Decades of literature explore its role in circadian and telomere biology.
Discovered by Pinchas Cohen's lab at USC, encoded inside mitochondrial DNA itself — the first widely studied member of a new class of mitochondrial-derived peptides. Reframed how researchers think about cellular energy signaling.
Researchers were spending hours in group chats and forums trying to work out which supplier actually runs HPLC, who publishes a real Certificate of Analysis, and whose "99% purity" claim survives a third-party test. We thought that was a bad use of scientific time — so we did the sourcing and verification once, and published the same numbers to everyone.
US synthesis, per-batch HPLC, COA on file, traceable batches. No vibes, no mystery sourcing.
The catalog shows our fixed retail price everywhere — home page, catalog, product pages. Wholesale numbers stay behind a member login.
Product and research pages explain pathways, models, and what the literature does and doesn't cover. We make no medical claims.
Everything here is for laboratory research use only. That's a constraint we design around, not a footer.
See what researchers are sourcing, or apply for vendor, distributor, or B2B access.
For laboratory research use only. Not for human or veterinary use. Nothing on this site is medical advice or a treatment recommendation.
