Research peptides are synthetic chains of amino acids sold as laboratory reagents for in-vitro and analytical research. They are not medicines, supplements or cosmetics, and they are not for human or veterinary use. What separates a useful reagent from an unknown white powder is documentation: a certificate of analysis that ties identity and purity results to the lot number on the vial.
This guide explains what research peptides are, what “research-grade” should mean, how to check a vial against its report, and what research use only means under Canadian rules.
The short answer
- A research peptide is a synthetic peptide, usually 2 to about 50 amino acids long, supplied as a freeze-dried powder for laboratory work.
- “Research-grade” should mean evidence you can check: identity confirmed by mass spectrometry, purity measured by HPLC, and a report carrying the same lot number as your vial.
- Not a drug. Research peptides are not authorized by Health Canada for human or veterinary use. Authorized drugs carry an eight-digit Drug Identification Number (DIN); research reagents do not.
- Buying in Canada keeps parcels out of customs and shortens transit. It does not replace checking the report.
- Test reports. HPLC purity and mass-spectrometry identity reports from Janoshik Analytical, an independent laboratory, are listed for most of our products on our lab testing page.
What are research peptides?
A peptide is a chain of amino acids joined by peptide bonds, typically from 2 to about 50 residues, which makes it shorter than a protein. Research peptides are made by chemical synthesis rather than extracted from tissue: most are built one amino acid at a time by solid-phase peptide synthesis1, purified by reverse-phase HPLC and freeze-dried into a stable powder. For the chemistry, see how research peptides are made and what lyophilized means.
Laboratories use them as test compounds in cell-based assays, as reference standards when developing analytical methods, and as tools for studying receptors and signalling pathways. If you are new to the subject, start with what peptides are.
A research peptide at a glance
What arrives in the box, and the paperwork that should come with it.
- What it is
- A synthetic peptide supplied as a laboratory reagent
- How it is made
- Solid-phase peptide synthesis, then reverse-phase HPLC purification
- Form
- Lyophilized (freeze-dried) powder in a sealed glass vial
- Label
- Compound name, amount per vial, lot number and storage conditions
- Documentation
- A certificate of analysis for that lot: HPLC purity and mass-spec identity
- Intended use
- In-vitro and analytical laboratory research only
What “research-grade” should mean
There is no legal definition of “research-grade”. The term is only useful when it points to evidence you can inspect. For a synthetic peptide, that evidence has six parts:
HPLC and mass spectrometry answer different questions, which is why a credible report includes both.
HPLC tells you how pure
- Separates the components of a sample and reports the main peak as a share of everything detected.
- Cannot tell you whether the main peak is the right molecule.
- Depends on the method: column, gradient and detection wavelength.
Mass spec tells you what it is
- Weighs the molecule and compares the observed mass with the expected mass.
- Cannot reliably tell you how much impurity is present.
- Cannot separate sequences that have the same mass.
A high purity figure is also not the same as peptide content. A vial that is 99% pure by HPLC still holds water and counter-ions, which add weight but no peptide; see net peptide content explained. Our HPLC testing guide shows how the purity figure is calculated, and for cell-based work it is worth asking about endotoxin, which neither test measures.
How to verify peptide purity and identity in five steps
You can do this in a couple of minutes with the vial in one hand and its report in the other.
On the vial label
- Lot no.
- 1The code printed on your vial
- Compound
- Name and amount per vial
- Storage
- Temperature and light conditions
- Use
- For research use only
On the certificate of analysis
- Lot no.
- 2Must be the same code as the vial
- Identity (MS)
- 3Observed mass matches the expected mass
- Purity (HPLC)
- 4Percentage plus the chromatogram
- Lab and date
- 5Who tested it, when, and a verification key
- Find the lot number on the vial.It is printed on the label. Note it exactly, including any letters and dashes.
- Open the report for that lot.Look it up on the supplier’s lab testing page. If your lot is not listed, ask for its report before you use the vial.
- Check identity.The observed mass from mass spectrometry should match the expected mass for the sequence.
- Check purity.Read the HPLC chromatogram as well as the percentage: one dominant peak on a flat baseline, with the method and detection wavelength stated.
- Check the lab and the date.Note who did the testing and when. Janoshik Analytical reports carry a verification key you can confirm on the lab’s own website.
If anything does not line up, set the vial aside until it is resolved. Our guide to reading a peptide COA walks through a full certificate, and how to spot fake or underdosed peptides covers the warning signs.
Look up the report for a product or lot we sell.
Open the lab testing pageResearch peptides vs authorized peptide drugs
Some peptides sold as research reagents share a name or sequence with compounds that have been studied, or approved, as medicines. That does not make the reagent a medicine. The difference is regulatory, and it shows on the label.
| Feature | Research peptide (reagent) | Authorized peptide drug |
|---|---|---|
| Intended use | Laboratory research only | Treating patients, under a prescriber |
| Health Canada review | None: not assessed for human or veterinary use | Reviewed for safety, efficacy and quality before sale |
| On the label | Lot number and a research-use-only statement | An eight-digit Drug Identification Number (DIN) |
| Quality evidence | The certificate of analysis for each lot, which varies by supplier | Good Manufacturing Practices (GMP) and regulatory inspection |
| How it is obtained | Ordered by qualified researchers for laboratory work | Prescribed and dispensed through a pharmacy |
Research use only: the rules in Canada
In Canada, peptides sold for human use are generally regulated as prescription drugs, and an injectable peptide must be authorized by Health Canada before it can be sold. Research reagents carry no DIN because they have not been assessed or authorized for use in people or animals.
Health Canada has been active on this in 2026. In April it warned consumers not to inject unauthorized peptides bought online, noting that such products have not been assessed for safety, efficacy or quality, and that it had seized products and was working with the Canada Border Services Agency to stop shipments.2 In June, a Québec court granted Health Canada a permanent injunction against an online retailer selling unauthorized injectable peptides.3 Both are covered in our answers to Reddit questions about peptides in Canada.
For researchers, the practical meaning is straightforward:
- Buy research peptides only for laboratory and analytical work, within your institution’s rules.
- A seller that offers dosing or injection guidance, or makes health claims, is marketing products for human use, which Health Canada treats as drugs that need authorization.
- Keep each lot’s certificate of analysis with your records. It is what makes your results traceable.
What we do and don’t do. Pure Peptides Canada sells peptides as laboratory reagents only. We do not sell for human or veterinary use, and we do not give dosing, administration or treatment advice. Conditions of sale are in our terms of service. This section is general information as of October 2026, not legal advice.
Buying research peptides in Canada: what to check
A domestic supplier solves some problems and not others. These are the checks that matter most for Canadian labs:
- Ships from within Canada. Domestic parcels avoid customs holds and long, temperature-uncontrolled transit. See shipping across Canada.
- Prices in Canadian dollars. No currency conversion at checkout and no import paperwork at the door.
- Reports you can read before you order. Published by product and lot, not one generic certificate reused across batches.
- Clear research-use-only terms. And no dosing, injection or health claims anywhere on the site.
- Someone who answers technical questions. A supplier should be able to tell you about salt form, storage and documentation before you buy.
- Consistency across reorders. Lot documentation should look the same each time you buy.
Our full checklist for choosing a peptide supplier in Canada goes further, research peptide prices in Canada explains what drives cost, and labs ordering larger quantities can read buying research peptides in bulk.
Where our research peptides come from
Pure Peptides Canada is a Canadian-owned supplier of laboratory research peptides, established in 2023. We ship within Canada, price in Canadian dollars and publish independent test reports for most of our peptides.
- MadeBy specialist peptide manufacturers overseas.
- TestedBy Janoshik Analytical, an independent laboratory: HPLC for purity, mass spectrometry for identity.
- PublishedOn our lab testing page, with earlier batches listed for many products.
- ShippedTracked, from within Canada.
We say “made overseas” because it is accurate. Most research peptides are synthesized by specialist manufacturers, and vague “made in Canada” language would not tell you anything useful. Reports are listed by product on the lab testing page, many with a batch code and earlier batches, and a few are available on request. If the lot on your vial is not listed, contact us and ask for its report before you use the material.
Browse research peptides by research area
The catalogue is grouped by the research field each compound is studied in. Prices are in Canadian dollars.
- Recovery & repairBPC-157, TB-500, the TB-500 fragment, KPV and LL-37, studied in tissue-repair and inflammation models.
- Growth & signallingGHRH analogues such as CJC-1295 and sermorelin, and secretagogues such as ipamorelin, GHRP-2, GHRP-6 and hexarelin.
- Anti-aging & cellularGHK-Cu, MOTS-c, SS-31, epithalon, NAD+ and other cellular-biology reagents.
- Cognitive & neuroSelank, Semax and their N-acetyl forms, DSIP and related neuropeptides.
- Metabolic researchIncretin-pathway receptor agonists, AOD-9604 and 5-Amino-1MQ.
- Peptide blendsPre-combined vials such as KLOW, GLOW, BPC-157 + TB-500 and CJC-1295 + ipamorelin.
Compound research guides
- BPC-157
- TB-500
- BPC-157 vs TB-500
- GHK-Cu
- CJC-1295 vs ipamorelin
- Semax vs Selank
- Kisspeptin
- LL-37 peptide
- AOD-9604
- IGF-1 LR3
- GHRP-6 vs GHRP-2
- Epitalon
- KPV
- MOTS-c, SS-31 and humanin
- Growth hormone peptides
- GLP-1 research map
- Retatrutide vs tirzepatide
Research library by topic
Every article in our research library is filed under one of eight topics. Each topic page lists its articles, newest first.
- Peptide basicsWhat peptides are, how they are built and named, and how peptide hormones and receptors work.
- Testing & qualityHPLC, mass spectrometry, certificates of analysis, net peptide content, stability and how to read a study.
- Buying in CanadaPrices, bulk orders, shipping, documentation and the questions Canadian research buyers ask before ordering.
- Recovery & repair researchBPC-157, KPV, LL-37, ARA-290 and related compounds in tissue-repair and inflammation models.
- Growth & signalling researchGHRH analogues, ghrelin-receptor agonists, somatostatin, IGF-1 and kisspeptin.
- Metabolic researchGLP-1, GIP and glucagon receptor agonists, amylin analogues, AMPK and brown adipose tissue.
- Cognitive & neuro researchSemax, Selank, DSIP, VIP, the melanocortin system and neurotrophic factors.
- Anti-aging & cellular researchGHK-Cu, Epitalon, MOTS-c, NAD+, sirtuins, mTOR, Nrf2 and senolytics.
Or browse all research articles, newest first.
Research peptide product pages
Each product page lists vial sizes in CAD and where its batch report is published.
- BPC-157 vials
- TB-500 vials
- BPC-157 + TB-500 blend
- KLOW blend
- GLOW blend
- CJC-1295 + ipamorelin
- CJC-1295 No DAC
- Ipamorelin
- GHK-Cu copper peptide
- KPV
- MOTS-c
- Epitalon
- Selank
- Thymosin Alpha-1
- AOD-9604
Frequently asked questions
What are research peptides?
Research peptides are synthetic peptides, usually 2 to about 50 amino acids long, sold as laboratory reagents for in-vitro and analytical research. They are not medicines, supplements or cosmetics, and they are not for human or veterinary use.
What does research-grade mean for peptides?
It should mean that a specific lot has its identity confirmed by mass spectrometry and its purity measured by HPLC, documented on a certificate of analysis that carries the same lot number as the vial, ideally from an independent laboratory. The term has no legal definition, so check the evidence rather than the wording.
Are research peptides legal in Canada?
It depends on what they are sold for. In Canada, peptides sold for human use are generally regulated as prescription drugs and must be authorized by Health Canada, with a Drug Identification Number (DIN), before they can be sold. Research reagents are not authorized for human or veterinary use and are sold for laboratory research only. Buyers are responsible for making sure their use complies with Canadian law and their institution’s rules. This is general information, not legal advice.
Are research peptides the same as peptide drugs?
No. An authorized peptide drug has been reviewed by Health Canada for safety, efficacy and quality, is made under Good Manufacturing Practices and carries an eight-digit DIN. A research peptide has had none of that review and is supplied for laboratory work only, even when it shares a name with a compound that has been studied or approved as a medicine.
How can I check the purity of a research peptide?
Use the certificate of analysis for your lot. Confirm that its lot number matches your vial, check that mass spectrometry confirms the expected mass, and read the HPLC chromatogram as well as the purity percentage. Laboratories with LC-MS access can also test the material themselves.
Are your research peptides third-party tested?
Yes, for most of our peptides. Janoshik Analytical, an independent laboratory, tests HPLC purity and mass-spectrometry identity, and the reports are published on our lab testing page, many with earlier batches. A few are available on request.
Where do your peptides come from, and where do they ship from?
They are made by specialist peptide manufacturers overseas, tested by Janoshik Analytical and shipped tracked from within Canada. Pure Peptides Canada is Canadian-owned and was established in 2023.
Do you give dosing or administration advice?
No. Everything we sell is for laboratory research use only. We do not provide dosing, administration or treatment guidance for people or animals.
Read the report, then choose the reagent
Independent Janoshik reports, prices in Canadian dollars and tracked shipping within Canada. For laboratory research use only.
Sources
- Merrifield RB. Solid phase peptide synthesis. I. The synthesis of a tetrapeptide. J Am Chem Soc. 1963;85(14):2149–2154. DOI
- Health Canada. Think twice before injecting peptides bought online: unauthorized products can seriously harm you. Public advisory, April 2026. Recalls and safety alerts
- Health Canada. News release on a permanent injunction against an online seller of unauthorized injectable peptides, July 29, 2026. Canada.ca
For laboratory research use only. Not for human or veterinary use, consumption or administration. Nothing on this page is medical advice or a claim that any compound diagnoses, treats, cures or prevents any condition. Purchasers confirm they are qualified to handle research materials and are of legal age in their province.
