IGF-1 LR3

Why Buy IGF-1 LR3 from Official Peptides

Official Peptides provides IGF-1 LR3 at research-grade purity with full third-party lab verification on every batch. We ship cold-pack from the US with same-day dispatch on orders placed before 2 PM EST. Our transparent documentation process and consistent quality make us the preferred source for researchers working with insulin-like growth factor compounds.

IGF-1 LR3 Research Profile

IGF-1 LR3 (Insulin-like Growth Factor-1, Long Arg3) is a modified analog of human IGF-1 with an arginine substitution at position 3 and an extended N-terminal sequence of 13 amino acids. These modifications significantly reduce IGF-1’s binding affinity to binding proteins, extending its effective half-life from approximately 15 minutes to 20-30 hours in animal models. Research has examined IGF-1 LR3 for its effects on cellular proliferation, differentiation, and anabolic signaling pathways. For research use only; not approved for human therapeutic application.

Product Specifications

• Purity: ≥99% (HPLC verified)
• Format: Lyophilized powder
• Quantity: 1mg per vial
• Storage: Refrigerate at 2-8°C; protect from light and repeated freeze-thaw
• Shipping: USPS Priority Mail with cold pack; ships within 1 business day

Frequently Asked Questions

Q: Why is IGF-1 LR3 preferred over standard IGF-1 in research?
A: The LR3 modification dramatically reduces binding protein affinity, freeing a greater proportion of the compound to interact with target receptors. The extended half-life also allows research protocols that don’t require frequent dosing to maintain stable IGF-1 receptor activation in study models.

Q: What cellular processes does IGF-1 LR3 affect in preclinical studies?
A: Research has documented IGF-1 LR3’s effects on the PI3K/Akt and MAPK signaling pathways, both of which mediate cell survival, proliferation, and differentiation. In vitro and in vivo models have examined these effects in muscle, adipose, and other tissue types.

Q: How should IGF-1 LR3 be reconstituted for research use?
A: Reconstitute with sterile acetic acid solution (0.1M) or bacteriostatic water per your laboratory protocol. Gently swirl — do not vortex — to dissolve. Use within 30 days of reconstitution when stored at 2-8°C.

Order IGF-1 LR3 Online

Purchase research-grade IGF-1 LR3 from Official Peptides. Secure checkout, US-based fulfillment, and a quality replacement guarantee on every order. Free shipping on orders over $150.

For Research Use Only. This compound is intended strictly for in vitro laboratory research by qualified scientists. Not for human consumption. Not FDA approved. Keep out of reach of children.