IGF-1 LR3
$70.00
Compound background
IGF-1 LR3 is a 83-amino-acid analog of insulin-like growth factor 1 engineered by (1) extending the native 70-residue sequence with a 13-residue N-terminal peptide and (2) replacing the third amino acid with arginine. These changes reduce its affinity for IGF-binding proteins and protect it from rapid enzymatic cleavage, prolonging plasma half-life from ~10 min to 6–10 h. Freed from most carrier constraints, IGF-1 LR3 more readily engages IGF-1 receptors (and, to a lesser extent, insulin receptors), triggering the canonical PI3K-Akt-mTOR and MAPK/ERK pathways that drive glucose uptake, protein synthesis, mitosis, and tissue remodeling.
Quality standards
- Greater than 99% pure
Sourcing standards
- Raw ingredients manufactured by an FDA registered & audited supplier following cGMP standards
- Finished peptides 0.22 µm sterile-filtered (aseptically processed) and produced in a GMP facility
- Tested by a US FDA registered & audited third-party analytical lab accredited by ISO/IEC and U.S. Department of Ecology
Learn more about Peptidology product sourcing, testing and quality standards.
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Always quality-tested, verified with third party COA’s
At every step, we prioritize quality by conducting rigorous third-party testing on all our products. These tests focus on four key characteristics—identity, purity, sterility, and endotoxicity—ensuring that each batch meets the highest standards for safety and performance, with independent third-party Certificates of Analysis (COAs) to verify our commitment to excellence.
Identity Test
Identity testing ensures that the product contains the correct ingredient as labeled, verifying its authenticity and matching it to established reference standards.
Purity Test
Purity and concentration testing verifies that the ingredient is present in the correct amount, with a purity of 98% or higher to meet stringent quality standards.
Sterility Test
Sterility testing ensures that the product is completely free from bacteria, fungi, and other microorganisms.
Endotoxicity
Endotoxicity testing specifically detects and quantifies lipopolysaccharides (LPS), components of bacterial cell walls, to ensure the product is free from harmful endotoxins.
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