IGF-1 LR3

Q: What is the typical dosage for IGF-1 LR3?

The typical dosage is 20–50 mcg, administered via Subcutaneous or intramuscular injection.

Q: What is the half-life of IGF-1 LR3?

The half-life of IGF-1 LR3 is ~20–30 hours.

Q: Is IGF-1 LR3 FDA approved?

No, IGF-1 LR3 is currently classified as "Research" and is not FDA approved for general use.

Also known as: Long R3 IGF-1 · Insulin-like Growth Factor 1 Long R3

A modified IGF-1 variant engineered to bypass growth-restricting transport proteins. Up to three times more potent than native IGF-1 for muscle hyperplasia.

Reviewed by Dr. Sarah Mitchell, PharmD, BCPS

Lead Researcher · 12+ years in peptide therapeutics

Half-Life

~20–30 hours

Typical Dose

20–50 mcg

Administration

Subcutaneous or intramuscular injection

Mechanism of Action

Directly activates IGF-1 receptors with reduced binding to IGFBPs, forcing extreme muscle cell hyperplasia, amino acid transport, and glycogen synthesis.

Key Research Areas

growth factormusclehyperplasiaIGF-1

Frequently Asked Questions

What is IGF-1 LR3?▾

A modified IGF-1 variant engineered to bypass growth-restricting transport proteins. Up to three times more potent than native IGF-1 for muscle hyperplasia.

How does IGF-1 LR3 work?▾

Directly activates IGF-1 receptors with reduced binding to IGFBPs, forcing extreme muscle cell hyperplasia, amino acid transport, and glycogen synthesis.

What is the recommended dosage for IGF-1 LR3?▾

The typical research dosage is 20–50 mcg, administered via Subcutaneous or intramuscular injection. Dosage protocols vary by study and should be determined by a qualified healthcare professional.

What is the half-life of IGF-1 LR3?▾

The half-life of IGF-1 LR3 is approximately ~20–30 hours. This affects dosing frequency and timing in research protocols.

Is IGF-1 LR3 FDA approved?▾

IGF-1 LR3 is currently classified as "Research" and is not FDA approved for general use. It is available for research purposes or through compounding pharmacies depending on your jurisdiction.

Research Disclaimer

The information provided about IGF-1 LR3 is for educational purposes only and is not intended as medical advice. Always consult a qualified healthcare professional before starting any peptide protocol. Products discussed have not been evaluated by the FDA unless explicitly noted.

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