IGF-1 LR3

Research Peptide

Also known as: Long R3 IGF-1, LR3-IGF-1

What is IGF-1 LR3?

IGF-1 LR3 is a modified insulin-like growth factor with extended half-life, studied for muscle growth and recovery.

How It Works

IGF-1 LR3 binds to IGF receptors with reduced affinity for binding proteins, resulting in longer activity and enhanced anabolic effects.

What Research Shows

Animal Studies

Human Studies

Key Findings:

Enhanced anabolic activity vs native IGF-1
May promote muscle hyperplasia
Extended half-life due to modifications

Limited Human Research

Most research on IGF-1 LR3 has been conducted in animal models. Human clinical trials are limited or absent. Results may not translate directly to humans.

Dosing Protocol

Typical Dose

20-100 mcg

Frequency

Once daily or post-workout

Route

Subcutaneous or intramuscular

Duration

4-6 weeks

These are general guidelines based on research literature and community protocols. Individual dosing should be determined by a qualified healthcare provider.

Safety & Risks

Reported Side Effects:

HypoglycemiaJoint painHeadacheWater retention

Contraindications:

Active cancer
Diabetes (caution)
Pregnancy

Important: This information is for research purposes only. Always consult with a qualified healthcare provider before using any peptide. Never use peptides without proper medical supervision.

Sourcing & Quality

Quality varies significantly between peptide sources. When sourcing IGF-1 LR3, consider:

Third-party testing (HPLC, Mass Spectrometry)
Certificate of Analysis (CoA) availability
Purity levels (>98% recommended)
Beware of LPS (endotoxin) contamination

CalcPep does not sell peptides or recommend specific vendors. Always verify product quality through independent testing.

Quick Facts

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