IGF-1 LR3 Peptide — Long Arginine Insulin-Like Growth Factor | Research Grade

IGF-1 LR3 is an 83-amino-acid analog of insulin-like growth factor-1 with a Long Arg3 modification that increases circulating half-life by reducing binding to IGFBP proteins. Research-grade specs Sequence length: 83 amino acids Class: IGF-1 analog (Long Arg3 variant) Half-life: ~20-30 hours (vs ~10 minutes for native IGF-1) Mechanism: IGF-1R agonist, reduced IGFBP binding Studied applications IGF-1 signaling and IGF-1R receptor research Anabolic and tissue-growth studies Aging and somatopause research Comparative insulin/IGF-1 receptor research Quality & trust ≥99% HPLC purity, third-party tested Mass spectrometry identity confirmation LAL endotoxin testing on every batch Batch-specific Certificate of Analysis included USA same-day shipping (orders before 2pm CT M-F) Related research: Sermorelin · CJC-1295 Ipamorelin Research literature IGF-1 Long Arg3 has been the subject of 16 peer-reviewed publications indexed in PubMed. Selected recent literature for research reference: Li X et al. (2004). Integration of hydrogen/deuterium exchange and cyanylation-based methodology for conformational studies of cystinyl proteins. Anal Biochem. PMID: 15246005 Shoubridge CA et al. (2003). Preferential intestinal delivery of long[Arg3] insulin-like growth factor (LR3IGF-I) over IGF-I in preweaning and adult rats. Endocrinology. PMID: 12697696 Khamsi F et al. (2001). Differential effects of insulin-like growth factor-I and gonadotropins on the proliferative activity of two subgroups of granulosa cells: cumulus oophorus and mural granulosa cells. Fertil Steril. PMID: 11334915 Laajoki LG et al. (2000). Solution structure and backbone dynamics of long-[Arg(3)]insulin-like growth factor-I. J Biol Chem. PMID: 10744677 Yang Y et al. (1999). Probing the folding pathways of long R(3) insulin-like growth factor-I (LR(3)IGF-I) and IGF-I via capture and identification of disulfide intermediates by cyanylation methodology and mass spectrometry. J Biol Chem. PMID: 10608814 References are provided for research reference only. Inclusion of literature does not constitute a recommendation, endorsement, or claim for any specific use of LiveWell Peptides products. Products are sold for laboratory and research use only and are not intended for human consumption, injection, topical application, or any other administration to the human body.