IGF-1 LR3

IGF-1 LR3 is a synthetic analog of IGF-1 created for scientific research. It offers strong stability and consistent results. Researchers should reconstitute it with Acetic Acid before testing. For research use only. Maintains stability when mixed with Acetic Acid

Buy 10 vials and get 15% Discount.

For wholesale orders, contact us at wholesale@pristineaminos.com

$130.00

IGF-LR3 – Research-Grade Growth Factor Analog

IGF-LR3 (Insulin-like Growth Factor Long R3) is a lab-grade version of IGF-1. Also called IGF-1 LR3, this peptide offers strong stability and steady activity for research. It swaps glutamic acid for arginine at position 3. Because of these features, IGF-LR3 gives researchers a reliable way to study growth factors and peptide signaling.

Its steady performance makes it one of the most studied peptides in labs today. Since IGF-1 LR3 stays active for longer, it helps researchers collect more consistent results in cell and molecular studies.

To get the best results, researchers mix IGF-LR3 with Acetic Acid instead of Bacteriostatic Water. This method helps keep the peptide stable and ensures accurate, repeatable results. By following this step, scientists can depend on reliable findings across many types of research.

Important Notice: IGF-LR3 is made only for lab and in vitro research. It is not a drug, food, or cosmetic. Researchers must handle it safely in a controlled lab and follow approved research rules. Only trained staff should use IGF-1 LR3 for scientific study.

With its strong stability and dependable quality, IGF-LR3 is suitable for scientific research.

Key Benefits of IGF-LR3

  • Extended half-life – IGF-LR3 lasts longer in research models compared to natural IGF-1, making it useful for extended studies.
  • Enhanced bioactivity – The arginine substitution at position 3 increases potency in experimental settings.
  • Cell growth stimulation – Commonly studied for its role in promoting cell division and proliferation.
  • Tissue repair research – Investigated for its potential to support recovery in tissue and muscle cell models.
  • Longevity studies – Widely used in experiments exploring aging and lifespan pathways.
  • Consistent in vitro performance – Offers reproducible results across a range of cellular and signaling studies.
  • Reliable research tool – Trusted by scientists to investigate growth factor signaling and cellular repair mechanisms.

⚠️ Research Use Only – Legal Disclaimer ⚠️

All products on this site are for research and development use only. All products are sold for research, laboratory, or analytical purposes only, and are not for human consumption. Products are not for human consumption of any kind. The statements made on this website have not been evaluated by the US Food and Drug Administration. The statements and the products of this company are not intended to diagnose, treat, cure, or prevent any disease. Pristine Aminos is a chemical supplier. Pristine Aminos is not a compounding pharmacy or chemical compounding facility as defined under 503A of the Federal Food, Drug, and Cosmetic Act. Pristine Aminos is not an outsourcing facility as defined under 503B of the Federal Food, Drug, and Cosmetic Act.

What quality testing do you provide?

Every peptide batch includes a Certificate of Analysis from SafeCert Labs, an independent CLIA certified facility. All chemical analysis is performed using HPLC with UV Detection coupled with Mass Spectrometry.

We’re the only research peptide supplier offering independent third-party testing by three different certified labs. Our testing protocols verify molecular identity, CAS number confirmation, purity levels (98%+ or 99%+), and appearance specifications.

All COAs are available before purchase so you can verify quality standards for your research applications.

Each COA displays the assession number, received date, reported date, and your specific product information (CAS number, quantity, identity, purity percentage, and appearance).

You’ll see two graphs: the HPLC chromatogram showing the purity peak, and the mass spectrometry data confirming molecular weight and identity. The specification table provides the result summary with exact purity percentage.

Every COA includes the testing lab’s principle chemist signature and the testing methodology used. Product photos show the actual vial appearance and labeling for verification.

Research applications typically require 95-99%+ purity for reliable results. Lower purity can introduce variables that interfere with in vitro studies and compromise data integrity.

Our 99%+ purity variants meet pharmaceutical-grade standards. Higher purity reduces experimental noise and gives you cleaner baseline data for your research protocols.

Store lyophilized peptides at -20°C in their original sealed vials. Keep them away from light and humidity.

Under these conditions, our research-grade peptides maintain stability for 3-5 years. The sealed environment with desiccant protection preserves molecular integrity for long-term laboratory use.

Reconstituted solutions remain stable for several days at 2-8°C. For longer storage, create small aliquots and freeze at -20°C or -80°C.

Avoid repeated freeze-thaw cycles. Use sterile bacteriostatic water and aseptic technique when preparing solutions for multiple-use research applications.

Most in-stock peptides ship the same day on orders placed before 12 PM PT. Domestic US orders arrive in 3-5 business days via standard shipping, or 1-2 days expedited.

We ship lyophilized peptides at ambient temperature in protective packaging. Free shipping on orders over $400.

99%+ Purity, Third Party Tested

Independently verified by three separate certified laboratories. COAs available pre-purchase.

GMP Manufacturing Standards

Synthesized in USA-registered facilities following Good Manufacturing Practices. Full chain of custody documentation.

Best In Class Fulfillment

Same-day shipping on orders before 12 PM PT. Free standard domestic shipping on orders over $400.

Zero Fillers or Additives

Pure active compounds only. Independently verified composition for reliable in vitro studies.