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IGF-1 LR3

Muscle & Anabolism

Enhanced anabolic effects and muscle growth with extended half-life.

Athletic Use Cases
Muscle HyperplasiaSatellite Cell ActivationNutrient PartitioningAnabolic Signaling
WADA Status
WADA Banned
Standard Dose
20mcg - 50mcg
Frequency
Daily or post-workout
Half-Life
~20-30 hours

Athletic Mechanism of Action

Modified IGF-1 with an arginine substitution and N-terminal extension that reduces IGFBP binding, extending half-life and anabolic activity.

For athletes, the primary value of IGF-1 LR3 lies in its ability to enhanced anabolic effects and muscle growth with extended half-life.. This mechanism is particularly relevant during high-volume training phases when tissue repair demand exceeds the body's natural recovery capacity.

Recovery Timeline

4–6 weeks for anabolic effects; use in short cycles

Individual response varies based on injury severity, training load, and baseline health markers.

WADA Compliance Status

WADA Banned Compounded

Hypoglycemia risk. Potential for organ growth with chronic high-dose use. Theoretical cancer promotion.

Always verify current WADA status with your sport's governing body before use in competition.

Research Evidence

Primary Study

https://pubmed.ncbi.nlm.nih.gov/8175953/

Clinical Protocol

Start a IGF-1 LR3 Protocol

Hatter Labs provides physician-supervised performance protocols with GMP-certified IGF-1 LR3 and comprehensive biomarker monitoring.

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Physician-Supervised Performance

Start Your Performance Protocol for IGF-1 LR3

Hatter Labs provides physician-supervised performance protocols with GMP-certified compounds, biomarker testing, and personalized programs designed around your training goals.

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