IGF-1 LR3 is a long-acting analog of insulin-like growth factor 1 engineered to extend its half-life and enhance its biological activity, allowing for prolonged interaction with IGF-1 receptors and improved anabolic signaling. Research shows that IGF-1 LR3 stimulates muscle protein synthesis, satellite cell activation, and myoblast proliferation, leading to enhanced muscle growth, repair, and hypertrophy. It also improves nutrient partitioning by promoting glucose uptake and amino acid transport into muscle cells, supporting a more favorable body composition. In addition to its musculoskeletal effects, IGF-1 LR3 enhances tissue regeneration by accelerating cellular recovery in tendons, nerves, and connective tissue, while modulating inflammatory pathways and reducing healing time following physical stress or injury. Through its amplified receptor activity, extended duration, and broad regenerative influence, IGF-1 LR3 plays a significant role in supporting growth, recovery, and systemic anabolic processes.

Due to the nature of research peptides and chemicals, all sales are final.

However, we offer replacement options in limited cases. Please refer to our Refund Policy for more information.

Processing time: 1–3 business days.
During high-volume periods, processing may take longer.

Orders are processed Monday – Friday, excluding Federal holidays.

Standard Priority Mail via United States Postal Service (USPS) $13.00 per order

We do not offer expedited or international shipping at this time. For more information, please visit our Shipping Policy.

Ingredients: IGF-1 LR3 1mg

Type: IGF analog

Form: Lyophilized powder 

Purity: ≥99% (HPLC)

Storage: Store at 2–8 °C, protected from light and moisture

For research purposes only.