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Market data · 30 suppliers · All regions

Buy IGF-1 LR3: 30 suppliers compared

30 of the suppliers we track list IGF-1 LR3. They are ranked by PepFinder rating, which combines reliability, selection, pricing, delivery, support and customer reviews, and shown with the prices they list per mg. We don't sell IGF-1 LR3, and we give no guidance on its use.Also listed as: Long R3 IGF-1

Prices checked 23 Sept 2026 · 48 listings · 39 in stock · Growth factor analogues

IGF-1 LR3 · listed price per mg
USD · 15 suppliersmedian US$103.73/mg
US$59.00/mgUS$459.90/mg
GBP · 7 suppliersmedian £49.99/mg
£0.00/mg£265.00/mg
CAD · 4 suppliersmedian CA$87.50/mg
CA$59.99/mgCA$125.00/mg

Each currency is shown separately; prices are never converted.

Regulatory status

Rules on buying, importing and using this product differ by country. Suppliers list it for laboratory research; nothing here is medical advice.

At a glance · 23 Sept 2026

Suppliers tracked
30 list IGF-1 LR3, 39 listings in stock
Price per mg (USD)
US$59.00/mg to US$459.90/mg, median US$103.73/mg, across 27 listings from 15 suppliers
Test certificates
Not yet collected by PepFinder for IGF-1 LR3; check each supplier's site. How to read a COA
Legal status
Rules differ by country. Legal status by country

What IGF-1 LR3 is

IGF-1 LR3 (Long R3 IGF-I) is a laboratory-made analogue of human insulin-like growth factor-1, designed in Adelaide in the early 1990s to bind poorly to the proteins that normally hold IGF-1 in check. It is used as a laboratory reagent and has been studied in rats, mice, pigs and other animals, but we found no published human trials, and it is not an approved medicine. Read the full IGF-1 LR3 guide, with the published research and references.

  5. 05

    Licensed Peptides

    US based
    Third-party testing statedPublishes COAs
    No reviews yetFrom US$74.98/mg
    7.4/ 10PepFinder ratingRead the review →
    Listing as namedSizePricePer mgStock
    IGF-1 LR3100mcg / 1 packUS$45.99US$459.90/mgOut of stockOn their site ↗
    IGF-1 LR3100mcg / 3 packUS$114.51US$381.70/mgOut of stockOn their site ↗
    IGF-1 LR3100mcg / 5 packUS$160.95US$321.90/mgOut of stockOn their site ↗
    IGF-1 LR3100mcg / 10 packUS$275.90US$275.90/mgOut of stockOn their site ↗
    IGF-1 LR31mg / 1 packUS$124.99US$124.99/mgIn stockOn their site ↗
    IGF-1 LR31mg / 3 packUS$311.19US$103.73/mgOut of stockOn their site ↗

    + 2 more on the full catalogue.

  19. 19

    ONYX BIOLABS

    US based
    Third-party testing statedPublishes COAs
    No reviews yetFrom US$59.99/mg
    6.7/ 10PepFinder ratingRead the review →
    Listing as namedSizePricePer mgStock
    IGF-1 LR3 Peptide (1mg)1mgUS$59.99US$59.99/mgIn stockOn their site ↗

Before you choose a IGF-1 LR3 supplier

Price per mg is only half the comparison. Check that the supplier publishes a certificate of analysis for the batch it is selling, ideally from an independent laboratory, and that the certificate confirms identity as well as purity: our guide on how to read a COA shows what to look for. A price far below the rest of the list is more often a warning than a bargain; peptide prices explained sets out why.

For what IGF-1 LR3 is and what published studies have found, see our IGF-1 LR3 guide. Handling questions are covered in how to store peptides, and the peptide calculator converts a vial size and water volume into concentration and syringe units. Rules on buying and importing differ by country: see legal status by country, or narrow this list to your region above.

Checking a IGF-1 LR3 certificate of analysis

  1. The certificate names a laboratory you can find independently, and ideally one with no stake in the result.
  2. It carries a batch or lot number that matches the product page or the vial label, and a test date.
  3. It confirms identity by mass spectrometry, not only purity by HPLC. Purity alone does not show the vial contains IGF-1 LR3.
  4. It includes the chromatogram and mass spectrum, not just a summary table.
  5. Where the laboratory offers online verification of its reports, the report number checks out.

Red flags

  • No certificates at all, or certificates available only “on request”.
  • The same certificate used for several products or several years of stock.
  • Payment only by cryptocurrency or bank transfer, with a discount for paying that way.
  • A price far below every other supplier on this page.
  • No company name, address or way to contact the business other than a web form.
  • Vials labelled only with a code rather than the product name and strength.

How to spot a fake peptide supplier explains each of these in more detail, and third-party peptide testing covers what independent results can and cannot prove.

Vials, capsules and pre-mixed products

Most research peptides are sold as freeze-dried (lyophilised) powder in sealed vials, which is mixed with a diluent such as bacteriostatic water before use in the lab. Some suppliers also sell pre-mixed solutions, nasal sprays or capsules under the same name. These are different products with different stability and dosing, so compare price per mg only between the same form, and check which form a listing is before comparing it with the rest of the table.

IGF-1 LR3: questions

Where can I buy IGF-1 LR3?

30 of the suppliers PepFinder tracks list IGF-1 LR3. The highest rated are Elite Research Labs, XL Peptides, Direct SARMS. The list on this page is ranked by PepFinder rating, which weighs reliability, delivery, pricing, support and customer reviews; nobody pays to be included or to rank higher.

How much does IGF-1 LR3 cost?

Listed prices in USD run from US$59.00/mg to US$459.90/mg, median US$103.73/mg, across 27 listings from 15 suppliers. Compare price per mg rather than price per vial, and only within one currency; a price far below the rest is more often a warning than a bargain.

What sizes is IGF-1 LR3 sold in?

Suppliers on this page list IGF-1 LR3 in 100mcg / 1 pack, 100MCG, Twin Pack 0.1mg Vial, 0.1mg Vial, 0.1MG, 100mcg / 3 pack. Most research peptides are sold as freeze-dried powder in sealed vials; capsules, sprays and pre-mixed solutions are different products, so compare price per mg only between the same form.

Is IGF-1 LR3 legal to buy?

It depends on the country. PepFinder summarises the rules for the UK, the US, Canada, Australia and New Zealand, with links to the regulators' own statements. Choose a region above to see suppliers and the rules for that country.

How do I check a IGF-1 LR3 supplier's test results?

Ask for a certificate of analysis for the batch being sold, and check that it names the laboratory, the batch number and the test date, and that it confirms identity by mass spectrometry as well as purity by HPLC. PepFinder has not yet collected certificates for IGF-1 LR3 from these suppliers, so check each supplier's own site.

How this list is built: suppliers appear because they list IGF-1 LR3 on their own website, read by our catalogue checks; nobody pays to be included or to move up. Ranking is by PepFinder rating. Prices, sizes and stock are as each site listed them when checked and may have changed. Provisional scores are based on incomplete research.