IGF-1 LR3
Long R3 Insulin-like Growth Factor-1
IGF-1 LR3 (Long R3 IGF-1) is an 83-amino-acid analogue of human insulin-like growth factor 1, carrying an Arg3 substitution and a 13-residue N-terminal extension that together cut its binding to the six IGF-binding proteins roughly a hundredfold. It is researched for sustained IGF-1 receptor activation - the reduced IGFBP sequestration extends its effective half-life from minutes to many hours - in muscle-growth, recovery and metabolic models.
The research profile.
IGF-1 LR3 (Long R3 IGF-1) is an 83-amino-acid analogue of human insulin-like growth factor 1, carrying an Arg3 substitution and a 13-residue N-terminal extension that together cut its binding to the six IGF-binding proteins roughly a hundredfold. It is researched for sustained IGF-1 receptor activation - the reduced IGFBP sequestration extends its effective half-life from minutes to many hours - in muscle-growth, recovery and metabolic models.
For research purposes only. Not for human consumption, diagnosis, treatment, or prevention of any condition.
Categorised as Hormones — GH secretagogues and recombinant HGH.
Independently verified purity.
Every batch is independently tested by the Brown Institute of Biomolecular Research or Janoshik Analytical. The full HPLC and mass-spec report is included in the physical shipment.
- Batch
- 26096
- Test date
- 23 Jul 2026
- Task ID
- #1812392
- Purity
- 99.85%
IGF-1 LR3: 1mg | Purity: 99.85%
Verified by Brown Institute of Biomolecular Research. Scan the full report for every measurement.