IGF-1 LR3 1mg Peptides
Built for disciplined research, this IGF-1 LR3 vial is prepared to meet the consistency demands of serious laboratories.
This lyophilized peptide vial features Insulin-like Growth Factor 1 Long R3 (IGF-1 LR3), a research-grade peptide presented as a freeze-dried powder for controlled handling and precise protocol design. Format: lyophilized vial. Style: unflavored, uncolored laboratory-grade powder. Active ingredient type: research peptide. Total strength: 1mg per vial.
- Each vial contains 1mg of IGF-1 LR3, a long-acting analog of insulin-like growth factor 1 frequently evaluated in vitro for IGF-1 receptor activation, receptor-binding kinetics, and downstream signaling pathway studies.
Designed for non-clinical use, the lyophilized format offers practical flexibility for laboratory workflows. Researchers may reconstitute according to institutional protocols to align concentration with assay requirements, enabling controlled application across cell-based systems and other investigative models. The unformulated powder keeps variables minimal, supporting reproducible study conditions and clear interpretation of results.
Better Molecule prioritizes compound integrity from sourcing through shipment. This peptide is produced in the USA with cGMP-aligned handling and is independently tested for identity and purity (HPLC and mass spectrometry). Each lot is released with rigorous quality checks and packaged in a tamper-evident container to safeguard chain of custody. Our documentation-driven approach is designed to help research teams maintain traceability and meet internal compliance standards.
For laboratory research use only. Not for human consumption, medical use, diagnostic use, or veterinary use. Handle with appropriate PPE and follow institutional guidelines for peptide handling and disposal. Store and reconstitute per your laboratory’s validated procedures to preserve sample integrity and support consistent experimental outcomes.
Choose Better Molecule for a precise, disciplined presentation of IGF-1 LR3—supported by careful manufacturing, validated testing, and transparent quality practices that enable confident research execution.
- Most orders ship within 24 hours and arrive within 3 to 5 days of leaving our warehouse.
- Shipping is free on orders of $99+ (except Hawaii and Alaska).
- All orders ship in discreet packaging via USPS Ground Advantage mail.
Delivery restrictions vary by state.
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Frequently Asked Questions
What is IGF-1 LR3?
IGF-1 LR3 is a modified long-acting analog of insulin-like growth factor 1. It is engineered for altered binding behavior and extended activity compared with native IGF-1, which is why it is treated as a distinct research molecule. On a site like this, it should be described as a research peptide tied to growth and metabolic signaling studies.
What is IGF-1 LR3 typically studied for?
Researchers usually investigate IGF-1 LR3 for cell proliferation, anabolic signaling, glucose uptake, and tissue-growth pathways. Because it acts downstream of growth-related signaling, it should be discussed carefully and scientifically, without implying that it is an approved product for muscle gain or performance use.
What are growth factors?
Growth factors are a class of signaling proteins and peptides that regulate cell proliferation, differentiation, and survival. Well-studied examples include insulin-like growth factor 1 (IGF-1), fibroblast growth factors (FGFs), epidermal growth factor (EGF), platelet-derived growth factor (PDGF), and nerve growth factor (NGF).
In research, growth factors are essential tools for cell culture, regenerative biology, developmental studies, and cancer research. They are typically used at low concentrations to stimulate specific cellular responses in vitro. All growth factor products from Better Molecule are intended for laboratory research use only.
What is the role of IGF-1 in research?
Insulin-like growth factor 1 (IGF-1) is a 70-amino-acid peptide with significant structural similarity to insulin. It is one of the most-studied growth factors in research and is a central player in studies of cell proliferation, differentiation, metabolism, and tissue growth. IGF-1 acts through its own receptor (IGF-1R), which shares downstream signaling components with the insulin receptor.
In the laboratory, IGF-1 is used as a reference ligand in receptor-binding studies, as a supplement in cell culture media for certain cell lines, and as a model peptide in studies of the PI3K/AKT/mTOR signaling pathway. IGF-1 products from Better Molecule are supplied for these kinds of research applications only.
How do growth factors differ from peptide hormones?
Peptide hormones — such as insulin, glucagon, and growth hormone — are typically produced by specialized endocrine glands and act on distant target tissues as part of systemic regulation. Growth factors are usually produced by a wider variety of cell types and tend to act in a more local manner, through autocrine or paracrine signaling on nearby cells.
Another difference lies in their biological roles: peptide hormones are generally studied in the context of metabolic and endocrine regulation, while growth factors are more commonly studied in the context of development, tissue repair, and proliferation. In practice, the categories overlap, especially for molecules like IGF-1 that behave in both ways.
