IGF1-LR3 CAS:143045-27-6

    IGF-1 LR3 is a modified form of the naturally occurring growth factor, Insulin-like Growth Factor 1 (IGF-1). It has been genetically engineered by adding a single amino acid modification - an arginine substitution at position 3 in the peptide chain - which drastically alters its biological activity compared to the standard form of IGF-1. This modification is responsible for a longer half-life, increased potency, and decreased binding to IGF-binding proteins (IGFBPs).

    IGF-1 is a peptide hormone that plays a critical role in growth and development, especially during childhood, where it helps regulate growth, muscle repair, and bone formation. It is produced mainly in the liver and its release is regulated by growth hormone (GH), which itself is secreted by the pituitary gland.

    However, IGF-1 LR3 has an enhanced version of IGF-1, meaning it has greater bioavailability and longer-lasting effects on the body. This makes it especially popular in performance-enhancing circles and for its potential therapeutic uses.

    1.1 Chemical Structure and Composition

    ●Molecular Formula: C152H252N44O51S2

    ●Molecular Weight: 8365.86 g/mol

    ●Peptide Sequence: The modified sequence includes an additional arginine at position 3 of the chain, which alters its binding affinity and stability.

    Unlike IGF-1, which binds strongly to IGF-binding proteins (IGFBPs) and thereby limits its effectiveness, IGF-1 LR3 has a reduced affinity for these proteins, allowing for a higher proportion of the peptide to remain in its free, active form in the bloodstream. This makes IGF-1 LR3 a more potent anabolic compound compared to the natural form of IGF-1.

    2.1 Enhanced Potency

    IGF-1 LR3 is known for its strong anabolic effects, promoting the growth of muscle tissue and stimulating the repair of damaged tissues. This increased potency comes from the alteration in the peptide's structure, which results in a greater ability to interact with muscle cells and other tissues.

    2.2 Extended Half-Life

    One of the standout features of IGF-1 LR3 is its extended half-life compared to regular IGF-1. The modified peptide has a much longer duration of action in the body. While natural IGF-1 has a half-life of approximately 20-30 minutes, IGF-1 LR3 boasts a significantly longer half-life of around 20-30 hours. This longer duration of activity means that IGF-1 LR3 can produce sustained effects over a longer period, making it particularly convenient for those looking for less frequent dosing.

    2.3 Decreased Binding to IGF-Binding Proteins

    The modification in IGF-1 LR3 also reduces its binding affinity to IGFBPs. IGFBPs typically bind to IGF-1, preventing it from interacting with its receptors in tissues. By reducing this binding, IGF-1 LR3 can circulate in its active form for a longer time and interact more effectively with IGF-1 receptors (IGF-1R), leading to enhanced anabolic effects.

    2.4 Muscle and Bone Growth

    IGF-1 LR3 is known to stimulate muscle cell growth and tissue repair by increasing protein synthesis. It also supports bone health by promoting the growth of bone matrix, which is crucial for bone density and strength. These properties make IGF-1 LR3 ideal for individuals looking to enhance muscle mass, speed up recovery, and support overall musculoskeletal health.

    3.1 Muscle Growth and Performance Enhancement

    IGF-1 LR3 is widely used in bodybuilding and athletics for its muscle growth-promoting properties. It is known to increase the size and strength of muscle fibers through hyperplasia (increase in the number of muscle cells) and hypertrophy (enlargement of existing muscle cells). This makes it a powerful agent for anyone seeking to build muscle mass rapidly and efficiently.

    ●Enhanced Muscle Recovery: IGF-1 LR3 speeds up muscle repair after intense workouts, helping athletes and bodybuilders recover faster and train more frequently without experiencing significant muscle breakdown.

    ●Muscle Hardening: The peptide not only aids in muscle growth but also in improving muscle density, making the muscles appear fuller and more defined.

    3.2 Fat Loss

    IGF-1 LR3 can indirectly help with fat loss by stimulating lipolysis, the breakdown of fat cells for energy. By promoting muscle mass and improving the metabolic rate, IGF-1 LR3 enhances the body's ability to burn fat while preserving lean muscle mass. This makes it valuable for individuals looking to achieve a leaner physique.

    3.3 Regenerative Medicine and Tissue Repair

    One of the most significant therapeutic applications of IGF-1 LR3 is in tissue regeneration. It has been explored for its potential to promote healing in various tissues such as tendons, cartilage, and bones. By stimulating collagen production and promoting cellular growth, IGF-1 LR3 can speed up recovery from injuries and surgeries. It has shown promise in healing bone fractures, ligament tears, and cartilage damage.

    ●Bone Health: IGF-1 LR3 also promotes osteogenesis, the formation of new bone tissue, which can aid individuals suffering from conditions like osteoporosis or those recovering from bone fractures.

    ●Joint Health: The peptide may also contribute to the regeneration of cartilage and joint tissues, providing relief from joint pain and stiffness, particularly for individuals with osteoarthritis or similar conditions.

    3.4 Growth Hormone Sensitivity and Treatment

    IGF-1 LR3 can be used in individuals with growth hormone resistance. This is often the case in conditions where the body produces adequate amounts of growth hormone, but the tissues are not responsive to it. IGF-1 LR3 can mimic the effects of growth hormone by directly stimulating the IGF-1 receptors, bypassing the resistance.

    3.5 Anti-Aging and Cognitive Health

    Emerging research has suggested that IGF-1 LR3 may also have potential applications in anti-aging and cognitive enhancement. Studies have shown that IGF-1 has neuroprotective effects, and the synthetic LR3 variant may help in the regeneration of brain cells, improving memory and cognitive function.

    4.1 Accelerated Muscle Growth

    The primary benefit of IGF-1 LR3 is its ability to promote muscle growth by stimulating protein synthesis and enhancing muscle cell regeneration. It increases the size and number of muscle fibers, leading to rapid muscle growth, particularly when combined with resistance training.

    4.2 Enhanced Recovery

    IGF-1 LR3 plays a vital role in accelerating recovery from intense physical activity. It helps repair muscle fibers, regenerate tissues, and reduce the damage caused by heavy workouts. This results in less muscle soreness and a shorter recovery period.

    4.3 Improved Fat Loss

    By stimulating lipolysis and increasing lean muscle mass, IGF-1 LR3 can help burn fat more efficiently. A higher proportion of muscle mass increases the body's basal metabolic rate (BMR), leading to more effective fat burning.

    4.4 Bone and Cartilage Repair

    IGF-1 LR3 has shown promise in promoting bone and cartilage healing. By stimulating the growth of these tissues, it accelerates the repair of fractures and joint injuries. It may be useful in conditions like osteopenia, osteoarthritis, and joint degradation.

    4.5 Anti-Aging Effects

     With its ability to enhance tissue repair, improve collagen production, and stimulate growth hormone receptors, IGF-1 LR3 may have an impact on slowing down the aging process. It has the potential to improve skin elasticity, reduce wrinkles, and support overall vitality.

    4.6 Cognitive Function Enhancement

    Some studies have suggested that IGF-1, including IGF-1 LR3, may have neuroprotective effects, aiding in memory enhancement and overall cognitive function. It could play a role in reducing the effects of neurodegenerative diseases, although further research is required.

    5.1 Standard Dosage

    The typical dosage of IGF-1 LR3 can vary depending on individual goals (e.g., muscle growth, recovery, fat loss, etc.). Common dosages include:

    ●For Muscle Growth: 40-100 mcg per day.

    ●For Fat Loss: 20-40 mcg per day.

    ●For Tissue Repair: 20-60 mcg per day.

    5.2 Administration Methods

    IGF-1 LR3 is typically administered via subcutaneous injection. The peptide is reconstituted with bacteriostatic water and injected into the fatty tissue, typically in the abdominal area.

    5.3 Frequency of Dosing

    Due to its long half-life, IGF-1 LR3 is usually injected once a day, preferably after a workout for muscle-building goals. Some users prefer to split the dosage into two smaller injections to maintain a more consistent level in the bloodstream.

    IGF-1 LR3 is typically used in cycles to allow the body to adapt and maximize results. A standard cycle may range from 4 to 8 weeks, with some individuals opting for shorter or longer durations depending on their goals.

    ●Short Cycle (4-6 Weeks): This is ideal for people looking for rapid results in terms of muscle growth and recovery.

    ●Longer Cycle (6-8 Weeks): Recommended for those looking for regenerative effects, such as healing injuries or enhancing bone/cartilage repair.

After a cycle of IGF-1 LR3, users often take a break for several weeks before starting another cycle.

    The half-life of IGF-1 LR3 is notably longer than regular IGF-1 due to its modification. The half-life is approximately 20-30 hours, allowing it to maintain its active presence in the body for a longer period. This prolonged half-life makes it ideal for once-daily injections, as it provides sustained anabolic effects over time.

    IGF-1 LR3 does not generally suppress natural hormone production to the extent that anabolic steroids do. However, when used in conjunction with other performance-enhancing substances, users may choose to implement a Post-Cycle Therapy (PCT) plan.

    ●PCT Protocols: Typically involve substances such as Clomid or Nolvadex to help restore natural hormonal balance, especially if anabolic steroids were used alongside IGF-1 LR3.

    ●Monitoring: It is advisable to monitor growth hormone and insulin-like growth factor levels during and after a cycle to ensure optimal recovery.

    Like any powerful peptide, IGF-1 LR3 can have side effects, particularly if abused or taken at high doses. Potential side effects include:

    ●Hypoglycemia (Low Blood Sugar): Since IGF-1 LR3 acts on insulin receptors, it may cause low blood sugar if glucose levels are not properly monitored.

    ●Joint Pain and Carpal Tunnel Syndrome: Prolonged use of high doses can lead to joint discomfort or even carpal tunnel syndrome.

    ●Water Retention: Users may experience bloating due to water retention, which is common with growth factor peptides.

    ●Increased Risk of Cancer: As a growth factor, IGF-1 LR3 has the potential to stimulate cellular growth, including that of cancerous cells. Caution should be exercised, especially for those with a history of cancer.

Product Name	Long R3-IGF-1; IGF-1 Long R3
CAS	143045-27-6
Molar mass	9117.60
MF	C400H625N111O115S9
Capacity/Bottle	10mg/vial
Shape	Lyophilized powder

 

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    IGF-1 LR3 is a potent and versatile peptide with a wide range of applications, from enhancing muscle growth and fat loss to promoting tissue repair and overall regenerative health. Its longer half-life, increased potency, and ability to stimulate IGF-1 receptors make it a valuable tool in both performance enhancement and medical therapies. However, like any potent substance, it should be used with caution and under professional supervision to minimize risks and maximize benefits.

 

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