Is IGF-LR3 FDA approved?
No. This profile records IGF-LR3 as not FDA approved and for research use only.
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Review the regulatory and source details on this page for the current context.
Metabolic CATEGORY
IGF-LR3
THE MUSCLE MAXIMIZER
Long R3 Insulin-like Growth Factor-1; LR3 IGF-1
IGF-LR3 is a modified version of IGF-1 with a much longer half-life. The modifications make it more potent and longer-lasting than natural IGF-1. It activates muscle satellite cells, promotes protein synthesis, and has powerful anabolic effects, which makes it popular among bodybuilders and those seeking muscle growth.
IGF-LR3
IGF-LR3
IGF-LR3
IGF-LR3 Evidence Snapshot
How these guides are reviewed
REGULATORY STATUS
Not FDA approved · research use only
DOSING GUIDANCE
Reviewed by our clinical team
LINKED EVIDENCE
1 research sources
CONTENT UPDATED
Aug 28, 2026
Dose and schedule recommendations shown below come from The Peptide App Clinical Team. Research links are provided so readers can inspect the supporting evidence directly. Review the sources.
Quick Answers About IGF-LR3
What dose does The Peptide App Clinical Team recommend for IGF-LR3?
Dose: 20-50 mcg daily.
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Schedule: daily. Cycle: 4-6 weeks on, 4 weeks off. This is clinical-team guidance for reference and does not replace individualized instructions from a licensed clinician.
What research supports this IGF-LR3 guide?
This guide links to 1 curated or current research sources.
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Open the research section to inspect the source titles, publication details, study types, and available abstracts directly.
Studied Effects & Mechanisms
IGF-1 Receptor Activation
Strongly activates IGF-1 receptors for growth signaling
Muscle Growth
Stimulates protein synthesis and satellite cell activation
Extended Half-Life
Modified structure resists binding proteins, lasting much longer
Bodybuilders seeking muscle growth
Athletes wanting enhanced recovery
Those with muscle-wasting conditions
People wanting fat loss with muscle preservation
IGF-LR3 Research
Live research temporarily unavailableThe live research feed did not return papers for this page. The curated references below remain available for crawlable source context.
RESEARCH REFERENCES