IGF-1 LR3 (Insulin-like Growth Factor-1 Long R3) is a synthetic peptide derived from the natural IGF-1 hormone. It features an extended half-life of approximately 20–30 hours, compared to the shorter duration of native IGF-1. This modification allows for prolonged activity in the body, making it a popular choice among athletes and bodybuilders aiming to enhance muscle growth, recovery, and fat loss .
IGF-1 LR3 promotes muscle development by stimulating protein synthesis and cell proliferation. It enhances nitrogen retention, reduces muscle breakdown, and supports the growth of lean muscle mass. Additionally, it improves nutrient absorption by increasing digestive tissue growth, contributing to overall performance enhancement .
Dosage and Administration
Dosage recommendations for IGF-1 LR3 vary based on experience and goals:
Beginners: Start with 20–40 mcg per day.
Advanced Users: May use 50–100 mcg daily, potentially split into two doses (e.g., morning and post-workout) .
Administration Guidelines:
Injection Method: Subcutaneous injections are common for IGF-1 LR3 administration.
Timing: Optimal results are often achieved when injections are administered post-workout to enhance muscle recovery and growth .
Cycle Duration: Typical cycles last 4–6 weeks, followed by an equivalent duration off to reset sensitivity .
Potential Side Effects
While IGF-1 LR3 can offer performance benefits, it may also pose risks:
Hypoglycemia: IGF-1 LR3 can lower blood sugar levels, leading to symptoms like dizziness, fatigue, and nausea.
Joint and Muscle Pain: Some users report discomfort in joints and muscles.
Swelling: Soft tissue swelling may occur in certain individuals.
Legal and Ethical Considerations
IGF-1 LR3 is a potent peptide that can significantly impact muscle growth and recovery. However, due to potential side effects and legal restrictions, individuals should exercise caution and consult healthcare professionals before considering its use.
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