IGF1-LR3
Original price was: $ 90.00.$ 70.00Current price is: $ 70.00. - or subscribe and save up to 10%
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.
| Quantity | Price | Discount |
|---|---|---|
| 3-5 | $ 67.20 | 4% |
| 6-8 | $ 64.40 | 8% |
| 10-15 | $ 62.30 | 11% |
| 16+ | $ 70.00 | $ 0.00 |
Description
IGF-1LR3
IGF-1 LR3 (Insulin-like Growth Factor-1 Long R3) is a synthetic peptide hormone used primarily in bodybuilding and performance enhancement.
Here are key points about it:
Structure:
Modified version of IGF-1 LR3 with an extended half-life (20-30 hours) due to an arginine substitution at position 3 and a 13-amino acid extension at the N-terminus.
Function:
Promotes muscle growth (hypertrophy) and repair by stimulating protein synthesis and cell proliferation.
Benefits:
- Enhances muscle mass and strength.
- Improves recovery from intense exercise.
- May support fat loss by increasing metabolism.
- Potentially aids in injury healing (e.g., tendons, ligaments).
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