IGF-1 LR3 1mg | Long R3 Insulin-Like Growth Factor-1
Extended-activity growth factor analog for advanced signaling research
IGF-1 LR3 is a modified analog of insulin-like growth factor-1 (IGF-1) engineered for reduced binding to IGF-binding proteins and prolonged biologic activity. Compared with native IGF-1, the LR3 modification is widely used in laboratory settings to study cellular growth pathways, skeletal muscle regeneration, nutrient uptake, and tissue-repair signaling.
Because of its extended half-life and stronger receptor persistence, IGF-1 LR3 is commonly selected in research models focused on:
muscle cell proliferation pathways
satellite cell activation
cellular repair + regeneration
glucose and amino acid uptake
soft tissue signaling
collagen-support pathways
body-composition and metabolic research
Its prolonged activity profile makes it especially useful when evaluating longer-duration anabolic and regenerative signaling cascades in controlled experimental environments.
🔬 Key Research Highlights
Extended signaling compared with native IGF-1
Reduced IGFBP binding for improved persistence
Supports muscle regeneration pathway studies
Useful for nutrient-partitioning research
Commonly explored in tissue-repair models
High-purity lyophilized peptide presentation
Suitable for controlled laboratory workflows
Kit includes BAC WATER for reconstitution
Laboratory Handling Example
Add 1 mL sterile research diluent
Swirl gently until dissolved
Do not shake
Store at 2–8°C
Avoid repeated freeze–thaw cycles
For Research Use Only. This is a laboratory handling example, not a human-use protocol.
IGF-1 LR3 1mg | Long R3 Growth Factor (kit includes BAC Water)
What makes IGF-1 LR3 different from native IGF-1?
IGF-1 LR3 has significantly reduced affinity for IGF-binding proteins, allowing for longer active signaling and improved persistence in research models.
What is it commonly studied for?
Popular research areas include:
muscle hypertrophy pathways
tissue regeneration
glucose transport
cellular recovery
metabolic signaling
nerve regeneration
Is it FDA-approved?
No. IGF-1 LR3 is supplied strictly for laboratory research purposes and is not approved for therapeutic human use.
How should it be stored?
Lyophilized vials should be kept frozen or refrigerated per SOP. After reconstitution, short-term cold storage is recommended


