Eternal BiolabsResearch Desk

Growth Hormone

IGF-1 LR3 1mg

Supports Muscle Cell Growth — supports muscle cell growth and protein synthesis to help build lean muscle. Supports Nutrient Partitioning — supports the delivery of glucose and amino acids into muscle cells to fuel growth and recovery. Supports Muscle Fullness — supports muscle glycogen storage, helping promote fuller, more volumized muscles. Supports Cellular Recovery — supports cell growth, regeneration, and recovery following intense training. Performance Support — supports strength, training capacity, and overall athletic performance.

$100.00 CAD

In stock · Purity 99.3% · Ships within Canada · Interac e-Transfer

View in store & add to cart

Description

IGF-1 LR3 is a modified version of insulin-like growth factor-1, a naturally occurring protein that plays an essential role in growth, cellular development, and tissue maintenance. It acts as one of the body's primary messengers following growth hormone release, helping coordinate processes involved in protein synthesis and cellular growth.

Researchers have explored its influence on muscle development, tissue repair, nutrient utilization, and cellular regeneration. Because of its extended activity compared to naturally occurring IGF-1, it has become an important molecule for researchers studying growth-factor biology and regenerative processes.

Its central role in cellular communication continues to make IGF-1 LR3 one of the most fascinating compounds in growth factor research.

Interesting Fact: Unlike growth hormone secretagogues, IGF-1 LR3 acts directly on IGF-1 receptors throughout the body and was engineered with a much longer half-life than natural IGF-1, allowing for more prolonged biological activity.

Compliance

For laboratory research use only. Not for human or veterinary use, diagnostic, or therapeutic application. By purchasing you confirm you are a qualified researcher.

Quality & testing

Purity99.3%
Lot numberEB-GR-447800
Testing labMZ Biolabs
Test date2026-07-03

Research guide

IGF-1 LR3 (Long R3 Insulin-Like Growth Factor-1) is a synthetic, 83-amino-acid analog of human IGF-1, engineered in the early 1990s to resist sequestration by IGF binding proteins (IGFBPs), thereby prolonging its biological activity at the IGF-1 receptor. It is studied in preclinical models for its roles in skeletal muscle protein metabolism, myoblast proliferation, fetal organ development, neuroprotection, and as a research tool in cancer biology. All current evidence is derived from cell culture and animal studies; no approved clinical indication exists for IGF-1 LR3.

Read the full IGF-1 LR3 research guide

Frequently asked questions

What does Eternal Biolabs sell?

Research-grade peptides and laboratory supplies for in-vitro and laboratory research use only, shipped within Canada. Products are not for human or veterinary use.

Are the peptides third-party tested?

Yes. Products are independently tested and certificates of analysis (purity, lot and test date) are published on the Lab Results page.

How do I pay?

Checkout uses Interac e-Transfer. Orders stay pending until the transfer matching the exact order total is received, then they are verified and shipped.

Cite this page

Eternal Biolabs Research Desk (2026). IGF-1 LR3 1mg. Eternal Biolabs. https://eternalbiolabs.ca/api/g/product/d910dbce-5a23-4c3d-9af2-780aae30daa8 Last reviewed 2026-07-03.

For laboratory research use only. Nothing on this page is medical advice, dosing guidance, or an instruction for human or veterinary use.