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Koi was started in 2022 by a small group of researchers and chemists who were tired of buying peptides from vendors whose vials never matched the label.
We were tired of guessing and ruining our experiments, so we ran a test. We ordered the same peptide, BPC-157, from five different vendors and sent each one to an independent lab. Three of the five failed.
All five product pages had mentioned 100% purity, and at least two were using the same uploaded COA PDF they had been using for months.
That was the moment Koi went from idea to plan. The name comes from the koi fish. There's a saying among Japanese koi keepers, "you don't keep koi, you keep water." The fish are only as good as what surrounds them. We believe a peptide is similar. The molecule on the bench is only ever as good as the lab that made it, the conditions it was lyophilized in, the cold chain it shipped through, and the testing that confirmed it before the vial went out.
Peptides have been one of the most productive areas of pharmacological research over the last fifteen years. More than 80 peptide-based therapeutics have cleared regulatory approval through agencies including the FDA and Health Canada, with several hundred more compounds in clinical development pipelines worldwide.
The reasons are practical: peptides offer molecular precision that small-molecule drugs often cannot match, published clinical trial data have shown narrower side-effect profiles in many target classes, and the solid-phase synthesis process for sequences up to roughly 40 amino acids is now mature enough to be manufactured reproducibly at high purity.
The preclinical work that supports all of that, cell-based assays, receptor-binding studies, in vitro pathway research, and rodent-model validation, depends on research-grade peptide material that is clean, correctly identified, and consistent batch-to-batch. Without that, the data going into the next stage is not usable.
Every Koi peptide is synthesized and lyophilized in Canada. The vial that reaches the laboratory is the vial that was filled at our partner facility, with no overseas drop-shipping or third-party warehouses in the chain.
Independent ISO/IEC 17025-accredited laboratory. The panel covers HPLC purity, LC-MS identity confirmation, mass and weight verification, sterility, bacterial endotoxin (LPS) per USP <85>, and residual TFA.
The COA published on the product page is the COA for the batch in the vial. Nothing recycled across batches.
Weighted toward research areas including tissue repair, metabolic and incretin pathway studies, neuroscience and cognition, and cellular ageing models.
Orders placed before 2 PM ET, Monday through Friday, ship the same business day from within Canada via Canada Post Xpresspost. Insulated packaging with cold packs is available at checkout.
Set close to the cost of synthesis and testing, with volume discounts on orders of five vials or more. All prices in CAD.
Email or contact form, answered by someone on the team, usually the same business day.
A few things we deliberately don't do.
We don't sell peptides bundled with bacteriostatic water, syringes, or any other administration supplies.
We don't publish customer testimonials describing how a peptide affected a person.
We don't add a peptide to the catalogue the same week it goes viral. New compounds run through the same QC process as the rest of the catalogue, which takes the time it takes.
Yes. Every batch ships with a third-party COA covering HPLC purity and mass spectrometry identity confirmation. The same document is published on the product page with the batch number, lot ID, and test date before the order ships.
Every Koi COA carries a unique identifier issued by the independent ISO/IEC 17025-accredited testing laboratory. The identifier can be cross-referenced directly with the laboratory's verification system to confirm the document is authentic. If anything on a COA looks inconsistent, email us, and we will put you in touch with the laboratory contact.
No. Koi peptides are supplied strictly for in vitro laboratory research conducted by qualified research professionals. They are not authorized health products under the Food and Drugs Act, do not carry a Drug Identification Number (DIN), Natural Product Number (NPN), or Homeopathic Drug Number (DIN-HM) issued by Health Canada, and are not intended to diagnose, treat, cure, or prevent any disease in humans or animals.
Every batch is sent to an independent ISO/IEC 17025-accredited laboratory for HPLC purity, LC-MS identity confirmation, mass and weight verification, sterility, bacterial endotoxin (LPS) per USP <85>, and residual TFA content. A batch is not released for sale until the full panel is on file.
Lyophilized vials should be stored at -20 °C, sealed and protected from light and moisture. After reconstitution with a sterile diluent, store at 2 to 8 °C and use within in-house stability windows. Avoid repeated freeze-thaw cycles and follow standard aseptic technique throughout handling.
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