**Overview**
IGF-1 LR3 is a recombinant analogue of insulin-like growth factor 1 (IGF-1) engineered to prolong its half-life and potency. It contains an arginine substitution at position 3 and a 13-amino-acid extension at the N-terminus, resulting in decreased affinity for IGF-binding proteins, prolonged half-life and about a three-fold increase in potency compared with native IGF-1【312189966635491†L549-L554】. This long-acting IGF-1 analogue is widely used in research to study IGF-1 receptor signalling, cell proliferation and differentiation, metabolic regulation and tissue repair.

**Key Research Applications**
– Investigating IGF-1 receptor signalling pathways and downstream effects in various cell types.
– Studying skeletal muscle growth, myogenesis and satellite cell activation.
– Evaluating osteogenic differentiation and bone remodelling in bone tissue models.
– Assessing metabolic regulation, glucose uptake and insulin sensitivity in metabolic research.
– Exploring wound healing and tissue repair mechanisms in vitro.

**Quality & Handling**
– Supplied as a lyophilized powder to preserve stability.
– Reconstitute using sterile bacteriostatic water and mix gently; do not agitate vigorously.
– Store lyophilized peptide at –20 °C; after reconstitution, store at 2–8 °C and use within 30 days.
– Avoid repeated freeze–thaw cycles to maintain integrity.

**Important Notice**
This product is intended for laboratory and analytical research use only. It is not a drug, food or household item and must not be used for human or veterinary purposes. Do not administer or ingest.

**Why Choose Anytime Compounds?**
– High-purity peptides manufactured in cGMP-compliant facilities.
– Third-party laboratory testing confirms identity, purity and endotoxin levels.
– Dedicated customer service and secure shipping for researchers.