Muscle Growth & Performance
IGF-1 LR3
Long-arginine3 IGF-1 analog studied for anabolic and growth-factor signaling research.
Anabolic-signaling researchGrowth-factor studies
How it works in the body
Muscle
Bone
Liver
RESEARCH USE ONLYPRECLINICAL COMPOUNDAvailable following assessmentREGENEXA ASSESSMENT
Vial concentration
IGF-1 LR3
0.1 mgThis is a clinician-reviewed research peptide. Pricing is provided as part of an approved, personalized plan after your assessment is reviewed.
Not sure where to start?
Discover what may fit your goals — a short, personalized Regenexa Assessment.
Take Your Assessment →- 🔒 Secure & encrypted checkout
- 📦 Fast, discreet worldwide shipping
- 🧪 Pharmaceutical-grade quality
- 🔬 Research use only
Not sure where to start? Discover what may fit your goals — a short, personalized Regenexa Assessment.Take Your Assessment →
Modified IGF-1 with reduced binding-protein affinity, extending its active half-life well beyond native IGF-1 and producing a more sustained anabolic and insulin-like signal.
Receptors
IGF-1 receptorSome cross-reactivity with the insulin receptor at high concentrations
Half-life: Approximately 20–30 hours, substantially longer than native IGF-1 (minutes) due to reduced binding-protein affinity.
Ask Regenexa AI about IGF-1 LR3
Get plain-language answers on mechanism, evidence and how it compares to other peptides — grounded in Regenexa's verified data.
“Why is hypoglycemia specifically flagged for IGF-1 LR3?”Ask Regenexa AI →Available following assessmentTake Assessment
CJC no-DAC / Ipamorelin
Tesamorelin
Ipamorelin
CJC-1295 With DAC