Why IGF-1 LR3 tests lower than our peptides
Our short peptides test above 98%. IGF-1 LR3 is different: it is a full protein, 83 amino acids long, while most peptides we carry are 3 to 45. A protein this size is made by bacteria rather than assembled step by step, and every batch carries a small share of near-copies of itself, such as slightly altered or paired-up forms. The purity test counts those as impurities, so even good IGF-1 LR3 normally tests a few points lower. That is normal for a protein this size.
Research use only. This is laboratory material. It is not an approved medicine in Canada, it is not for human or veterinary use, and nothing on this page is dosing or administration guidance.
The short version
- IGF-1 LR3 (Long R3 IGF-1) is an 83-amino-acid analogue of insulin-like growth factor 1. It carries a 13-amino-acid extension and one substitution that stops it binding to the carrier proteins that normally clear IGF-1, so it stays active far longer in research models.
- Native IGF-1 exists as a prescription medicine in some countries for rare growth disorders. The LR3 analogue is not approved anywhere, including by Health Canada.
- We stock it as a 1mg vial of lyophilized powder. It is produced recombinantly, not by chemical synthesis, which is why lab reports for it look different from a short peptide’s.
- Every batch is tested by an outside lab. The report is on this page before you ask for it.
- Ships from inside Canada. No customs, no border risk.
What arrives
A sealed 1mg vial of lyophilized powder. One milligram is a very small amount, so expect a thin film rather than a visible cake at the bottom of the glass. Capped and labelled with the compound, the size and the batch number that matches the lab report.
How to read our lab report
Every batch goes to an outside laboratory before it is listed. The report gives two numbers that matter. Purity is how much of what is in the vial is the compound you paid for. Mass is how much material is actually in the vial. Purity is the number every supplier quotes; mass is the one many skip, and it is the one that catches underfilling. A vial labelled 10mg that measures 10mg or more was not shorted. A vial that measures 8mg is, whatever its purity says.
Ask any supplier for both numbers on the batch you are being sold, not a sample batch from last year. Ours included. The current report for this product is further down this page.
Sizes and price
| Size | Price | Cost per mg |
|---|
| 1mg | $70.00 | $70.00 |
Working out how much to reconstitute? The peptide calculator does the arithmetic for any vial size.
Shipping and payment
Orders leave from inside Canada, so nothing crosses a border and nothing gets held at customs. Express shipping is free over $250. Below that it is a flat rate shown at checkout. Payment is by Interac e-Transfer. Tracking is sent by email once the carrier has the parcel.
Where IGF-1 LR3 stands in Canada
IGF-1 LR3 is not approved by Health Canada as a medicine. It is not prescribed here, and no pharmacy stocks it. It is supplied here as laboratory material for research use only. The growth-hormone axis it belongs to is explained in HGH in Canada: growth hormone and anti-aging peptides.
Questions people ask before buying IGF-1 LR3 in Canada
Why is the vial only 1mg?
Because IGF-1 LR3 is a protein studied at microgram scale, not a short peptide studied at milligram scale. One milligram is a normal research quantity for it, and the price per vial reflects the recombinant production.
Where do you ship IGF-1 LR3 from?
From inside Canada, by express courier. Free over $250, flat rate below. Payment by Interac e-Transfer.
How do I check the IGF-1 LR3 lab report?
Purity and identity for the batch you are buying, on the Janoshik report on this page. Recombinant proteins are usually reported by SDS-PAGE or HPLC rather than mass spectrometry alone; the report states which.
Research library
The questions people actually ask are answered properly in these, not compressed into a product page.
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