(Receptor Grade)

Explore the Frontier of Cellular Growth and Protein Synthesis Pathways

IGF-1 LR3 (Insulin-like Growth Factor 1 Long Arg3) is a synthetic peptide analog of naturally occurring IGF-1, engineered to extend its half-life and enhance its stability in laboratory models. Known for its structural modifications—specifically a substitution of arginine at position 3 and a 13-amino acid extension—IGF-1 LR3 is designed to resist binding proteins and increase bioavailability in research settings.

At Lifestyle Peptides, we supply high-purity, lab-validated IGF-1 LR3, ideal for scientific inquiry into cell growth, protein synthesis, and anabolic signaling pathways. Our compound is produced in cGMP-compliant environments, third-party tested, and available exclusively for qualified research use.

Why Researchers Study IGF-1 LR3

IGF-1 plays a critical role in cellular development and regeneration, particularly in response to growth hormone (GH)stimulation. The LR3 modification has been shown in animal and in vitro models to exhibit greater potency and a longer duration of activity compared to native IGF-1.

In preclinical studies, IGF-1 LR3 is explored for its influence on:

• Muscle cell differentiation and hypertrophy modeling

• Myoblast proliferation and protein expression

• Glucose metabolism and insulin pathway activity

• Cellular repair in musculoskeletal research models

• Neuroprotective signaling and cognitive model development

The extended half-life of IGF-1 LR3—up to 20–30 hours—makes it a valuable tool in research examining sustained receptor activation and signaling cascade analysis.

Product Specifications

• Peptide Name: IGF-1 LR3 (Long Arg3 Insulin-like Growth Factor-1)

• Form: Lyophilized peptide powder

• Purity: ≥99%, confirmed by HPLC and Mass Spectrometry

• Storage: Store at -20°C, protected from moisture and light

• Packaging: Sealed, sterile vial

• Documentation: Certificate of Analysis (COA) available upon request

• Use Case: Laboratory research use only

Each batch is tested for identity, purity, and stability to ensure quality for controlled research environments.

Compliance Notice

IGF-1 LR3 is a research chemical. It is not approved by the FDA and is not intended for human or veterinary use. This compound must not be consumed, injected, applied topically, or used for therapeutic or diagnostic purposes. It is provided solely for non-clinical research by qualified professionals.

For laboratory research use only. Not for human or animal consumption.