The cost of a research peptide is not the number on the vial. It is the price divided by the milligrams of actual peptide in the vial, plus shipping, taxes and the documentation that proves what you received. A lab that compares only sticker prices will often pick the wrong product. A lab that compares cost per milligram, batch evidence and landed price will not.
This guide explains how to calculate cost per milligram, why prices differ between compounds and suppliers, which fees to confirm before checkout, and how to compare quotes on equal terms. It is written for qualified researchers buying compounds for in-vitro work, not for personal use.
TL;DR
- Divide the total price by the labelled peptide content in milligrams to get cost per milligram. Compare suppliers on that figure, never on price per vial.
- Sequence length, modifications, purity grade and batch size drive most of the price difference between compounds.
- A low price is only a saving if the batch has a Certificate of Analysis (COA) from an independent laboratory showing identity and purity.
- Confirm shipping, tax and customs treatment before ordering. A Canadian supplier shipping within Canada avoids cross-border customs fees.
- For current figures, see our peptide prices in Canada page. Prices change, so a fixed number in an article goes stale quickly.
Table of Contents
- How to calculate cost per milligram
- Why research peptide prices vary
- What the price should come with
- Are shipping, taxes and fees included?
- How to compare peptide prices fairly
- Our perspective
- Research peptides from TrueLabs
- Compliance and intended use
- FAQ
- Sources
How to calculate cost per milligram
Cost per milligram is the one figure that lets you compare a 5 mg vial with a 10 mg vial, or one supplier with another. The formula is simple:
Cost per mg = total price (CAD) ÷ labelled peptide content (mg)
Take a hypothetical example, used here only to show the arithmetic. A 5 mg vial at $45 costs $9.00 per mg. A 10 mg vial of the same compound at $66 costs $6.60 per mg. The larger vial costs more in total, but each milligram is cheaper, which matters if your protocol will use the material before it degrades.
Three details change the result:
- Labelled content versus net peptide content. A lyophilized vial can contain counter-ions and residual water as well as peptide. If a COA reports purity by HPLC, that describes the proportion of the peptide signal that is the target sequence. It does not tell you how many milligrams of peptide are in the vial. Check what the label actually states.
- Volume and scale. Per-milligram cost usually falls as vial size rises, but only helps if you can use the full amount within your storage and stability limits.
- Landed cost. Add shipping, any handling charge and applicable tax before dividing. A cheaper vial with a $20 delivery charge can cost more per milligram than a dearer vial that ships free.
A worked comparison
Suppose you need 20 mg of the same compound. The figures below are invented for illustration.
| Option | Vials | Price | Shipping | Landed total | Cost per mg |
|---|---|---|---|---|---|
| A: small vials | 4 × 5 mg | $180 | $15 | $195 | $9.75 |
| B: large vial | 1 × 20 mg | $140 | $15 | $155 | $7.75 |
| C: cheap listing, no COA | 2 × 10 mg | $100 | $25 | $125 | $6.25 |
Option C looks cheapest. It is only cheaper if the material is what it claims to be. If a batch fails an identity check, the real cost per usable milligram is unbounded, because the experiment has to be repeated. That is why the next sections matter as much as the arithmetic.
Why research peptide prices vary
Two vials of the same named compound can differ in price by a large factor. The reasons are mostly technical.
Sequence length and complexity. Solid-phase synthesis adds one amino acid at a time. Longer chains accumulate more coupling steps, more by-products and more purification losses, so they cost more to produce at a given purity. A short peptide and a long, hydrophobic one are not priced alike.
Modifications. Phosphorylation, biotinylation, acetylation, amidation, lipidation and cyclization each add reagents, steps or purification work. Modified peptides carry a premium over the plain linear sequence.
Purity grade. Higher purity requires more preparative HPLC and accepts lower yield. A crude product, a greater-than-90% product and a greater-than-98% product are priced differently by synthesis services, and the difference is real work, not branding.
Batch size and sourcing. Larger synthesis runs spread fixed costs, and a supplier that buys small lots pays more per milligram. Where the material is made and how it is tested also matters.
Testing and documentation. Independent third-party testing costs money per batch. A supplier that pays for it on every lot carries a cost that a supplier skipping it does not. That cost is part of what a fair price covers, and it is the part that protects your data.
Class of compound. Peptide classes differ in synthesis difficulty. Short neuropeptides, growth hormone secretagogues, larger incretin analogues, mitochondrial peptides and gonadotropins sit at different points on the cost curve, so one class’s price tells you little about another’s.
What the price should come with
Price is half the comparison. The other half is evidence that the vial contains what the label says. A purity percentage alone is not enough, and the checks below are worth making before you compare price.
- HPLC purity. HPLC measures how much of the signal belongs to the main peak. It does not by itself establish identity. As one testing laboratory explains, HPLC purity does not establish identity or detect endotoxin: mass spectrometry confirms identity and LAL testing measures endotoxin.
- Mass spectrometry. Look for a reported molecular weight consistent with the expected sequence.
- Endotoxin. In cell-based work, endotoxin can interfere with results. Our guide to peptide endotoxin testing and COA checks covers the methods and limits.
- Batch-specific COA. A certificate tied to the lot number on your vial, issued by an independent laboratory, is stronger than a generic document on a product page.
- Date and lab identity. The COA should show the test date and the laboratory that performed the analysis.
For a fuller checklist, see our guide to research compound supplier checks and the explainer on what a high purity label should prove.
Are shipping, taxes and fees included?
Often they are not, and this is where a quoted price drifts from the real one. Work through each item before you place an order.
- Shipping charge. Check whether delivery is free, flat-rate or tied to an order threshold, and whether it applies to temperature-sensitive handling.
- Taxes. Sales tax is generally added at checkout in Canada and varies by province. Institutional purchasers should confirm how their purchasing office treats it.
- Customs and brokerage. Material crossing the border can attract duties, brokerage fees and delays that are not in the listed price. Shipping within Canada avoids that layer, which is part of the argument in our comparison of Canadian versus imported peptides.
- Currency. A price in US dollars is not comparable with one in CAD until you convert it and add card fees.
- Delivery time. A delay can cost more than a fee if material sits in transit. Our page on research peptide shipping in Canada covers rules, timelines and handling.
How to compare peptide prices fairly
Use the same method for every quote. A repeatable process also gives your purchasing office a record of why a supplier was chosen.
- Fix the specification. Write down compound, sequence, salt form, vial size and minimum purity.
- Convert to CAD and add shipping and tax to get a landed price.
- Divide by labelled content to get landed cost per milligram.
- Request the batch COA for the lot you would receive, and confirm identity and purity are both reported.
- Check the testing laboratory is independent of the seller.
- Note the storage and handling guidance, including lyophilized storage conditions and reconstitution advice.
- Score the result. Put cost per mg and documentation side by side. A supplier that is 10% dearer but documents every lot is often the lower-risk choice for a funded study.
| Factor | What to record | Why it matters |
|---|---|---|
| Landed cost per mg | Price + shipping + tax ÷ mg | The only like-for-like price |
| Identity evidence | Mass spec result on COA | Confirms the right molecule |
| Purity evidence | HPLC percentage and method | Shows what share is the target |
| Endotoxin | LAL result where relevant | Protects cell-based assays |
| Batch traceability | Lot number matches COA | Links the document to your vial |
| Delivery | Origin, transit time, handling | Affects stability and schedule |
Reconstitution also changes how you think about cost. Once you add solvent, cost per working dose depends on concentration and aliquoting. Our reconstitution calculation tools help you plan volumes so that less material is wasted, which lowers the effective cost of an experiment.
Our perspective
We built TrueLabs around a simple observation: in the research compound market, the cheapest listing is rarely the cheapest outcome. Researchers have told us the same story many times. A low price arrives with a purity figure and little else, and the real cost shows up weeks later as an unexplained result.
Our approach is to make the evidence part of the price. Every batch we supply is independently verified by a third-party laboratory and accompanied by a Certificate of Analysis, and our products are designed to meet a guaranteed 99% purity. We think that is what a fair price should include, because it lets you trace a result back to a specific lot.
We also think transparency about cost should extend past the vial. As a Canadian company, we ship within Canada with no customs fees, using discreet packaging and fast delivery, so the price you see is not quietly inflated by border charges or delays. Our aim is to protect researchers from unforgiving markups without asking them to accept uncertainty.
Our advice is to compare on landed cost per milligram and on documentation together. When you do, a supplier that publishes batch-level testing is easy to justify to a lab manager, a funder or a reviewer.
Matis
Research peptides from TrueLabs
If you are comparing suppliers for in-vitro work, our catalogue covers BPC and thymosin class peptides, GH secretagogues, incretin analogues, mitochondrial peptides, melanocortin agonists, gonadotropins, neuropeptides and lab supplies. Each batch ships with a COA from an independent laboratory.
Browse the full range on the TrueLabs research peptide catalogue, or go straight to a compound page such as Kisspeptin, DSIP or Pinealon. For delivery options across the country, see our guide to research peptides in Canada.
Compliance and intended use
Research compounds are sold for laboratory use only. Canadian regulators look beyond a disclaimer: according to a Canadian law firm’s analysis, Health Canada may treat a peptide product as a drug where the surrounding circumstances point to human use. The same source notes that enforcement can weigh marketing language, product presentation and usage patterns. In practice, buy from suppliers who market strictly to qualified researchers, keep your purchasing records with your institution, and use materials only in in-vitro work.
FAQ
Tap a question to reveal the answer.
How much do research peptides cost in Canada?
Price depends on the compound, vial size, purity grade and documentation, so there is no single figure. Short, common sequences cost less per milligram than long or modified ones, and larger vials usually cost less per milligram than small ones. For current numbers, see our peptide prices in Canada page.
How is cost per milligram calculated?
Divide the total landed price in CAD, including shipping and tax, by the labelled peptide content in milligrams. A $60 vial containing 10 mg is $6.00 per mg before shipping. Use the same method for every supplier so that the figures are comparable.
Why is a cheaper peptide sometimes more expensive in the end?
If the material lacks identity confirmation or a batch-specific COA, you cannot be sure what is in the vial. A failed or irreproducible experiment costs the material again plus the time. Documented batches reduce that risk, which is why we compare price and evidence together.
Are shipping and taxes included in the listed price?
Usually not. Check the shipping charge, provincial sales tax and, for imported material, duties and brokerage fees. Shipping within Canada avoids cross-border customs charges, but tax and delivery fees still need confirming at checkout.
Does a 99% purity claim tell me everything?
No. HPLC purity describes the share of the main peak. It does not confirm identity or measure endotoxin, so look for mass spectrometry and, in cell-based work, endotoxin testing on the batch COA.