IGF-1 LR3 – 1mg


Comprising 70 amino acids in a single chain, IGF-1 LR3 is a hormone with a very similar structure to insulin. When it comes to building muscle and improving muscle mass, it presents significant results, and therefore IGF-1 LR3 stands as a reliable ally for heavy lifters.


Product Description

Thanks to IGF-1 LR3’s ability to accelerate the repair of muscle fibres and regenerate new muscle fibres, it means the muscles are able to produce greater force. Plus, in-depth research suggests the hormone could also have anti-aging properties, whilst increasing longevity of its user.

Key Benefits:

  • Aids in building muscle
  • Improves muscle mass
  • Speeds up the healing of muscle damage
  • Promotes the formation of fresh muscle fibers
  • Acts as an anti-aging agent
  • Supports longevity

Product Information

Product Name: IGF-1, Insulin-like growth factor 1, Somatomedin C, Mecasermin*.

Protein sequence:




IGF-1 is a large peptide/small protein that consists of 70 amino acids in a single chain with three intramolecular disulfide bridges. These disulfide bridges impart molecular rigidity and resistance to particular proteases.

It is a next generation compound that promotes one of the most important growth factors in the human body. After growth hormone is produced in the pituitary gland it stimulates the liver to produce this peptide which then goes on to stimulate systematic body growth in almost every different type of cell and tissue in the body.
IGF-1 is a hormone similar in molecular structure to insulin. It plays an important role in childhood growth and continues to have anabolic effects in adults.

Signaling through the insulin/IGF-1-like receptor pathway is a significant contributor to biological aging in many organisms. It was shown that mutations in the daf-2 gene double the lifespan of the roundworm, C. elegans. This implies that IGF-1 could have anti-aging properties and an impact on longevity.

Spiked levels of IGF-1 has been shown to drastically increase muscle growth as a result of heavy weight training and can enhance the rapid repair of existing muscle fibers as well as the promote the regeneration of new muscle fibers.

IGF-1 is sold in vials containing 1MG of lyophilised powder which can be reconstituted by adding a convenient amount of sterile or bacteriostatic water.

* Mecasermin is a synthetic variant of this naturally occurring peptide and is used to treat growth failure.

Product FAQ

IGF-1 LR3 is an adjusted research version of the peptide hormone Insulin-Like Growth Factor. This engineered compound has an increased binding affinity for IGF-1 receptors and reduced bonding with serum proteins. The way it functions varies among several tissue types; in muscle cells, for instance, it heightens sensitivity to insulin action resulting in impeded fat storage.

With the capability to remain active in one’s body for more than 24 hours, IGF-1 LR3 binds effectively to cell receptors within muscle cells and promotes cellular communication. This encourages muscles to develop at a faster rate throughout the day. In addition, it enhances muscles’ sensitivity toward insulin, lowering the fats’ storage.

IGF-1 LR3 specifically targets muscle cells and increases their insulin sensitivity. This helps reduce fat storage and increases the subject’s ability to burn fat as energy, aiding in lean muscle mass growth. It is primarily for research and typically investigates bodybuilding and physical fitness-related topics.

Studies have indicated that IGF1-LR3 can reduce myostatin and stimulate MyoD, a protein essential for muscle growth. Moreover, ongoing investigations are looking into the potential of IGF1-LR3 in halting the development of various ailments such as dementia, muscle wasting, and kidney disease.

IGF-1 LR3 can be paired with other peptides and research compounds, such as CJC-1295, GHRP-6, and Melanotan II. A combination of these substances can further enhance the effects of IGF-1 LR3 on muscle growth, fat loss, and increased insulin sensitivity. It is necessary to note, however, that all research compounds should be used in conjunction with strict protocols and under the supervision of a professional.