Loading peptide directory…
Side-by-side
Pick up to 3 peptides and see their key facts side by side. Useful for narrowing a search before deciding which page to read in full.
1 of 3 selected.
| Field | Last updated |
|---|---|
| Aliases | Long R3 IGF-1, LR3 IGF-1, Long [Arg3] IGF-1 |
| Category | Growth Hormone Secretagogues |
| Formula | — |
| Molecular weight | 9117.6 Da |
| Half-life | ~20–30 hours |
| Mechanism (summary) | IGF-1 LR3 is a synthetic 83-amino-acid analog of IGF-1 with an arginine substitution at position 3 plus a 13-amino-acid N-terminal extension. It is predominantly a research reagent; the retrieved literature did not identify a substantial clinical efficacy program in humans specific to LR3. |
| Dosing notes | No standardized human research dose was identified. Published preclinical work includes continuous infusion paradigms such as 180 mcg/kg/day. Many commercial datasheets present the peptide primarily as a recombinant protein for cell-culture systems rather than a drug-development product. |
| Storage |
A recombinant LR3 IGF-1 datasheet recommends storage of the lyophilized protein at -20 to -70 C. After reconstitution, aliquot and store at -20 to -70 C for up to roughly 3 months; avoid repeated freeze-thaw cycles. |
| Read more | Full reference → |
|---|