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IGF-1 LR3 (Insulin-like Growth Factor-1 Long R3) by Beligas Pharma is a highly potent, modified version of natural IGF-1.1 The "LR3" modification involves the replacement of Glu with Arg at the third position and the addition of a 13-amino acid extension.2 This change prevents the peptide from being bound by proteins in the blood, extending its half-life from 20 minutes to approximately 20–30 hours.3
This USA Domestic kit includes 1 vial of 1 mg (1,000 mcg) and a dedicated vial of Bacteriostatic Water, ensuring you have everything needed for a complete research or performance cycle.
Muscle Hyperplasia: Unlike standard steroids that cause hypertrophy (making existing cells bigger), IGF-1 LR3 can cause hyperplasia—the literal creation of new muscle cells.
Nutrient Shuttling: Acts as a powerful partitioner, forcing glucose and amino acids into muscle cells rather than fat cells.
Rapid Recovery: Drastically accelerates the repair of muscle tissue and connective fibers, often cited as being up to 2x faster than natural recovery rates.
Enhanced Fat Metabolism: Increases the utilization of fat for energy, supporting a leaner and more vascular physique.4
Synergy with HGH: When used alongside Human Growth Hormone, IGF-1 LR3 maximizes the GH-to-IGF conversion process for extreme results.
| Feature | Details |
| Active Substance | IGF-1 Long R3 |
| Manufacturer | Beligas Pharma |
| Total Content | 1 mg (1,000 mcg) |
| Kit Includes | 1 Vial Peptide + 1 Vial Bacteriostatic Water |
| Purity | 99%+ (HPLC Tested) |
| Active Half-Life | ~20–30 Hours |
Standard Dose: 20 mcg to 50 mcg per day. High-level athletes may go up to 80 mcg, but higher doses increase the risk of side effects.
Timing: Most effective when administered post-workout. This is when muscle cells are most "primed" for nutrient uptake.
Cycle Length: Typically used for 4–5 weeks, followed by a break of equal length to prevent receptor desensitization.5
Method: Subcutaneous injection (usually in the abdominal fat) or intramuscular injection into the muscle group trained that day.6
Hypoglycemia: Because it mimics insulin, blood sugar can drop.7 Always consume carbohydrates shortly after administration.
Water Retention: Some users experience mild edema or joint stiffness at higher dosages.
Gut Health: Overuse can lead to "distended gut" issues if not cycled properly or if used at excessive dosages.
Contraindications: Absolutely avoid if you have a history of cancer or tumors, as IGF-1 promotes cellular growth of all types.
Pre-Mixing: Store in a cool, dry, dark place (refrigeration preferred).
Post-Mixing: Must be kept refrigerated (2°C - 8°C). * Sensitivity: IGF-1 LR3 is extremely fragile. Never shake the vial. Gently swirl to dissolve the powder into the water.