IGF-1 LR3

IGF-1 LR3 (Insulin-like Growth Factor 1 – Long Arg3) is a synthetic analog of naturally occurring IGF-1, a hormone that mediates many of the effects of growth hormone (GH). The LR3 modification extends its half-life and enhances bioavailability, making it more potent and longer acting. IGF-1 LR3 supports muscle growth, fat metabolism, and cellular repair, making it a popular peptide in the realms of performance, recovery, and anti-aging medicine.

Benefits of IGF-1 LR3:

• Promotes lean muscle growth and hypertrophy

• Enhances recovery and tissue repair

• Increases protein synthesis and nitrogen retention

• Improves fat metabolism and insulin sensitivity

• Supports nerve regeneration and neurological repair

• May aid in bone density and connective tissue healing

• Plays a role in anti-aging and cellular regeneration

Dosing Protocol:

• Subcutaneous injection 20–50 mcg per day 5-7 timer per week. Cycle every 4-8 weeks. 
• Best taken post-workout or first thing in the morning. Dosing can be targeted near muscle groups for localized anabolic effect. IGF-1 LR3 is often stacked with growth hormone secretagogues like CJC-1295 or Ipamorelin for synergistic effect.

Potential Adverse Effects:

• Hypoglycemia (low blood sugar)

• Water retention or joint pain

• Headaches, fatigue, or nausea (rare)

• Possible desensitization with prolonged high dosing

• Contraindicated in active cancers or growth-related disorders

Due to its potent effects on cell growth, IGF-1 LR3 should be used under professional guidance, especially in individuals with a history of cancer or insulin sensitivity issues.