IGF-1 LR3

Insulin-like Growth Factor 1 Long R3

Muscle Building

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Mechanism of Action

Extended-acting analog of IGF-1 that binds to IGF receptors with reduced affinity for IGF binding proteins, resulting in prolonged anabolic activity. Promotes muscle cell hyperplasia and hypertrophy through mTOR pathway activation.

Primary Benefits

  • Muscle growth and recovery
  • Enhanced protein synthesis
  • Fat metabolism support
  • Tissue repair acceleration

Common Uses

  • Post-workout recovery
  • Lean muscle building
  • Body recomposition
  • Injury rehabilitation support

Side Effects

  • Hypoglycemia
  • Joint pain
  • Jaw/hand numbness
  • Water retention
  • Increased appetite

Contraindications

  • Active cancer or history of cancer
  • Diabetes (use with extreme caution)
  • Pregnancy or breastfeeding
  • Under 25 years of age

Dosage Protocols

LevelAmountFrequencyTiming
Beginner20 mcgDailyPost-workout or morning
Standard40 mcgDailyPost-workout
Advanced80 mcgDailySplit AM/PM doses

Cycle Duration

4-6 weeks on, 4 weeks off

Half-Life

20-30 hours

Reconstitution Instructions

Reconstitute with bacteriostatic water. Add slowly to vial wall.

Storage Requirements

Unreconstituted (Powder):

Store frozen or refrigerated, stable for months

Reconstituted:

Refrigerate 36-46°F, use within 28 days

Research & Literature

Explore peer-reviewed studies and clinical research on IGF-1 LR3

Research Disclaimer: These links lead to external research databases. Always consult with a qualified healthcare provider before making decisions based on research literature.

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For Research Purposes Only

This information is provided for educational and research purposes only. It is not intended as medical advice, diagnosis, or treatment recommendation. Consult a licensed healthcare professional before using any peptide. BioProtocol does not sell peptides or pharmaceutical products.