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Performance & IGF
Lab VerifiedPerformance-focused peptides including IGF-1 LR3, MGF, and other growth-factor compounds for advanced muscle growth and recovery protocols.
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Available Domestic
Generic Peptides
Generic Peptides IGF-1 LR3 100 mcg and 1 mg Research Vials
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$55.00
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Generic Peptides
Generic Peptides PEG MGF 2 mg and 5 mg Research Vial Options
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$43.00
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Buying Performance & IGF Online
Buy IGF-1, MGF & Performance Peptides Online - Growth Factor Compounds
Performance peptides centered around Insulin-like Growth Factor (IGF) and Mechano Growth Factor (MGF) represent the most directly anabolic category of peptides. These compounds target muscle cell proliferation and differentiation through growth factor pathways that are distinct from - and complementary to - traditional anabolic steroids and growth hormone.
IGF-1 LR3 (Long R3 Insulin-like Growth Factor-1) is a modified version of IGF-1 with an extended half-life of approximately 20 - 30 hours compared to just 12 - 15 minutes for native IGF-1. This modification makes it far more practical for research and performance applications. IGF-1 LR3 promotes muscle cell hyperplasia (the creation of new muscle cells), which differs from the hypertrophy (enlargement of existing cells) primarily driven by anabolic steroids. This means IGF-1 LR3 has the potential to permanently increase the number of muscle fibers, creating a lasting structural advantage. It also enhances nutrient partitioning, directing calories toward muscle tissue rather than fat storage.
MGF (Mechano Growth Factor) is a splice variant of IGF-1 that is produced locally in muscle tissue in response to mechanical stress - essentially, intense training. Synthetic MGF activates satellite cells (muscle stem cells) and promotes muscle tissue repair and growth at the cellular level. PEG-MGF is the pegylated form with an extended half-life, making it more practical for research protocols. While IGF-1 LR3 works systemically, MGF's effects are more localized to the muscle tissue where it is administered.
These growth factor peptides are frequently used by advanced athletes who have already maximized the benefits of anabolic steroids and HGH. They are typically added to existing protocols rather than used as standalone compounds. Common stacking approaches include combining IGF-1 LR3 with HGH (which naturally elevates IGF-1 through hepatic production) and testosterone, or using MGF post-workout alongside a standard steroid cycle. Timing is important: IGF-1 LR3 is typically administered on training days, while PEG-MGF is often used on rest days to support recovery.
GenXXLGear carries research-grade IGF-1 LR3, MGF, and PEG-MGF from Dragon Pharma, Geneza Pharmaceuticals, and other verified manufacturers. All performance peptides ship from our US warehouse in 3 - 6 business days. We accept Bitcoin, USDT, Zelle, and Visa.
Before you ask
Questions, answered
IGF-1 LR3 is a modified form of IGF-1 with a long half-life that works systemically to promote muscle cell hyperplasia (new cell creation) and nutrient partitioning throughout the body. MGF (Mechano Growth Factor) is an IGF-1 splice variant that works locally in muscle tissue to activate satellite cells and promote repair. Many advanced protocols use both, with IGF-1 LR3 on training days and PEG-MGF on rest days.
Yes, and this is one of the most common advanced stacking approaches. HGH naturally elevates IGF-1 through liver production, while exogenous IGF-1 LR3 provides additional growth factor stimulation. Together, they amplify anabolic signaling through complementary pathways. Many users add IGF-1 LR3 during the later weeks of an HGH cycle.
IGF-1 LR3 and MGF are generally considered advanced compounds. They are most effective when added to an established protocol that already includes anabolic steroids and/or HGH. Beginners to peptides typically start with GH secretagogues (CJC-1295/ipamorelin) or recovery peptides (BPC-157/TB-500) before progressing to growth factor peptides.
IGF-1 LR3 is administered via subcutaneous or intramuscular injection. Typical research doses range from 20 - 80 mcg per day, injected either bilaterally into the target muscle post-workout or subcutaneously. Cycles generally run 4 - 6 weeks on, followed by a 4-week break to prevent receptor desensitization. It should be injected away from meals due to its interaction with insulin pathways.
All our peptides come from verified pharmaceutical manufacturers including Dragon Pharma and Geneza Pharmaceuticals. Products ship lyophilized (freeze-dried) from our US warehouse in 3 - 6 business days with full tracking. We accept Bitcoin, USDT, Zelle, and Visa.