Peptide · Research-only
IGF-1 LR3
A long-acting insulin-like growth factor-1 analog; unapproved, unregulated and banned in sport.
Key facts
- Also known as: Long R3 IGF-1
- Status: Research-only
- Used for: Growth factor
- Natural counterpart: A modified, long-acting version of natural IGF-1.
- Target enzyme / receptor: IGF-1 receptor (IGF1R) — a receptor tyrosine kinase (enzyme)
- Signalling pathway: PI3K/Akt & MAPK → cell growth and protein synthesis
In plain terms: Drives strong growth signalling (PI3K/Akt) for cell and protein growth. - Crystal structure: no peptide–target complex in the PDB yet — study the target ↗
Status & safety
This is sold as an unapproved “research chemical” (labelled “not for human use”). It is not approved, is unregulated, and carries real safety and legal risks. We cover it for information, not to encourage buying or using it.
Research & clinical studies
Explore the biochemistry and clinical evidence for IGF-1 LR3 — these open live, date-sorted searches, so they always show the latest.
Read research papers on PubMed ↗
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