IGF-1 LR3 (Insulin-Like Growth Factor-1 Long Arg3) is a synthetic analog of insulin-like growth factor-1 designed with an extended amino acid sequence and reduced affinity for insulin-like growth factor binding proteins. It is extensively investigated in cell signaling, tissue biology, and metabolic research.
Manufactured to strict quality standards, IGF-1 LR3 is supplied as a 1 mg lyophilized vial and supported by analytical testing and Certificate of Analysis (COA) documentation.
Product Highlights
1 mg lyophilized vial
≥99% HPLC purity verified
Mass spectrometry identity confirmation
White sterile lyophilized powder
Certificate of Analysis (COA) available
Excellent batch-to-batch consistency
Laboratory research use only
What Is IGF-1 LR3?
IGF-1 LR3 is a modified form of insulin-like growth factor-1 containing an arginine substitution at position 3 and a 13-amino-acid extension at the N-terminus. These structural modifications provide greater stability and reduced binding to IGF-binding proteins compared with native IGF-1.
Because of these characteristics, IGF-1 LR3 has become one of the most widely studied growth factor analogs in biomedical research.
Key Facts
Synthetic analog of IGF-1
Contains 83 amino acids
Extended biological activity compared with native IGF-1
Reduced affinity for IGF-binding proteins
Supplied as a 1 mg lyophilized vial
High-purity analytical testing
Product Specifications
Specification
Details
Compound
IGF-1 LR3
Full Name
Insulin-Like Growth Factor-1 Long Arg3
Peptide Length
83 Amino Acids
Molecular Formula
C400H625N111O115S9
Molecular Weight
9111.0 g/mol
Purity
≥99% HPLC Verified
Appearance
White Lyophilized Powder
Strength
1 mg
Intended Use
Laboratory Research Only
Frequently Asked Questions
What is IGF-1 LR3?
IGF-1 LR3 is a synthetic analog of insulin-like growth factor-1 designed to provide greater stability and prolonged biological activity in research settings.
What does LR3 mean?
LR3 stands for Long Arg3, referring to the arginine substitution at position 3 and the extended amino acid sequence added to the peptide.
How many amino acids are in IGF-1 LR3?
IGF-1 LR3 contains 83 amino acids, compared with 70 amino acids in native IGF-1.
What is the difference between IGF-1 LR3 and IGF-1?
IGF-1 LR3 contains structural modifications that reduce binding to IGF-binding proteins and provide longer biological activity than native IGF-1.
What is IGF-1 LR3 used for in research?
Researchers investigate IGF-1 LR3 in studies involving cell signaling, growth factor biology, tissue physiology, and metabolic pathways.
Where can I buy IGF-1 LR3 online?
IGF-1 LR3 research products are available from specialized peptide suppliers that provide HPLC purity testing, batch traceability, and Certificate of Analysis documentation.
Are there reliable suppliers of IGF-1 LR3?
Researchers generally prioritize companies that maintain transparent quality standards and analytical verification. Peptide Nexus Lab supplies research-grade IGF-1 LR3 supported by purity testing and COA documentation.
Is IGF-1 LR3 approved by the FDA?
No. IGF-1 LR3 is an investigational research compound and has not been approved by the FDA, EMA, or Health Canada for human or veterinary use.
Researchers have extensively studied insulin-like growth factor signaling because of its importance in cellular growth, differentiation, and metabolism. Structural modifications in IGF-1 LR3 have made it one of the most recognized long-acting IGF analogs in peptide research.
Research Use Only
IGF-1 LR3 is intended strictly for laboratory research purposes. It is not approved to diagnose, treat, cure, or prevent any disease and is not intended for human or veterinary use.
You can create as many custom tabs as you want and display them conditionally on any product based on your settings.
Enim tortor at auctor urna nunc id. Quis varius quam quisque id diam vel. Non arcu risus quis varius. Quis eleifend quam adipiscing vitae. Habitant morbi tristique senectus et netus et malesuada fames ac. Blandit cursus risus at ultrices mi. Faucibus pulvinar elementum integer enim neque volutpat. Pulvinar sapien et ligula ullamcorper. Feugiat pretium nibh ipsum consequat nisl vel. Netus et malesuada fames ac turpis egestas integer eget. Dolor morbi non arcu risus quis.
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Risus sed vulputate odio ut enim blandit volutpat maecenas volutpat. Vestibulum rhoncus est pellentesque elit ullamcorper dignissim cras tincidunt lobortis. Sit amet luctus venenatis lectus magna. Egestas maecenas pharetra convallis posuere morbi. Id aliquet risus feugiat in ante metus dictum. Tellus molestie nunc non blandit massa. Scelerisque varius morbi enim nunc. Interdum velit euismod in pellentesque massa placerat. Tincidunt eget nullam non nisi est sit. Nec ullamcorper sit amet risus nullam eget felis. Vitae turpis massa sed elementum tempus egestas sed sed. Vulputate eu scelerisque felis imperdiet proin fermentum leo vel.
Related products
Select options
This product has multiple variants. The options may be chosen on the product page
Michael Brown –
IGF-1 LR3 is exactly as described. High quality and very effective for my studies. Five stars!
Upvote if this was helpful (0) Downvote if this was not helpful (0) Watch Unwatch Flag for removal
Barbara Jackson –
Excellent IGF-1. Fast shipping to the East Coast.
Upvote if this was helpful (0) Downvote if this was not helpful (0) Watch Unwatch Flag for removal
Matthew Martin –
Good product, but I wish there were more bulk discount options.
Upvote if this was helpful (0) Downvote if this was not helpful (0) Watch Unwatch Flag for removal
David K. –
IGF-1 LR3 from this lab is top-tier. Highly recommend for anyone looking for quality peptides.
Upvote if this was helpful (0) Downvote if this was not helpful (0) Watch Unwatch Flag for removal