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Synthetic extended version of Insulin-Like Growth Factor 1…

IGF-1 LR3

  • Synthetic extended version of Insulin-Like Growth Factor 1

    Increased stability and longer half life compared to native IGF-1

  • Key role in cell growth, repair, and development

    Active duration of 20 to 30 hours versus native IGF-1's short half life

How It Works

  • Binds to IGF-1 receptors in muscle and tissues, triggering protein synthesis

    Increases nutrient transport to muscle cells for repair and growth

LR3 modification reduces binding to IGF-binding proteins, extending active duration

Research Applications

  • Muscle hypertrophy, tissue regeneration, and cell proliferation

    Recovery and repair following intense physical stress

  • IGF pathways in anti-aging and metabolic health

    IGF-1 signaling in various physiological processes

Product Details

  • Form: Lyophilized powder

    Purity: 98% or higher (HPLC)

Storage

  • Store at minus 20C

    Protect from light and moisture

  • Reconstitute with bacteriostatic water

For research use only. Not approved for human or veterinary use

Certificate of Analysis

Third Party Tested by Elementrix Diagnostics

LatestISO 170254× Tested
99.28%PurityPassed full QC panel
Variant1 mg
Lot #IGF0766
Labeled1mg
Actual1.012mg
TestedMay 29, 2026

Why Choose Peptora

Third-Party Tested

Every batch independently verified by accredited analytical laboratories.

Batch-Specific COAs

Each order ships with a certificate of analysis matched to its exact lot.

99%+ Purity Standards

HPLC-verified compounds made to strict, consistent quality specifications.

Same-Day Processing

Orders placed before the daily cutoff ship the same business day.

Dedicated Support

Knowledgeable help for ordering, documentation, and batch verification.

98.4%
Purity RateHPLC-verified pharmaceutical grade
100K+
Orders ShippedTrusted by researchers worldwide
943
5-Star ReviewsVerified customer feedback
Same Day
Avg Ship TimeSame-day shipping available

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Frequently Asked Questions

IGF-1 LR3 (Long R3 IGF-1) is a modified, longer-acting analog of insulin-like growth factor 1, studied in laboratory research on IGF-receptor signaling. Peptora supplies it strictly as a research compound for laboratory use only.

For Research Use Only

All Peptora Labs products are intended solely for laboratory and scientific research. Not for human or veterinary consumption, compounding, diagnosis, treatment, cure, or prevention of disease.

Peptora Labs does not provide medical advice, dosing instructions, or treatment recommendations. These statements have not been evaluated by the Food and Drug Administration. These products are not drugs and are not intended to diagnose, treat, cure, or prevent any disease.