

IGF-1 LR3
Long-Acting IGF-1 Analog
IGF-1 LR3 for sale — research-grade, third-party lab-tested to ≥99% purity. Long-Acting IGF-1 Analog. Buy IGF-1 LR3 online with crypto, discreet worldwide shipping and a batch-matched COA.
IGF-1 LR3 (Long Arg3 IGF-1) is an 83-amino-acid analog of human Insulin-like Growth Factor 1 featuring an N-terminal extension and an Arg substitution at position 3. These modifications reduce IGFBP binding, extending circulating half-life roughly 12-15x versus native IGF-1. Widely used in cell-culture and preclinical studies of anabolic signaling. For laboratory research use only.
Activates the IGF-1 receptor (IGF-1R) tyrosine kinase, driving PI3K/Akt/mTOR and Ras/MAPK cascades that regulate protein synthesis, proliferation, and cell survival.
For Research Use Only. Sold for in vitro laboratory research. Not for human or veterinary consumption. By purchasing, you confirm you are 21+ and a qualified research professional.
83 residues · scroll horizontally on mobile
Long Arg3 variant: N-terminal 13-residue extension + Arg-for-Glu at position 3.
Every batch of IGF-1 LR3 ships with an independently conducted Certificate of Analysis by Janoshik Analytical or Bioviridian. The COA includes HPLC-MS chromatogram, mass spec confirmation, endotoxin levels, and heavy metals screening.
Batch number is printed on the vial label and included in your order confirmation email. Look it up at pepidyn.com/coa.
IGF-1 LR3 FAQ
Is IGF-1 LR3 a peptide?
IGF-1 LR3 — Long-Acting IGF-1 Analog — is supplied as a research-grade peptide compound, lyophilized for laboratory study. See the molecular data on this page.
What is IGF-1 LR3 used for in research?
IGF-1 LR3 (Long Arg3 IGF-1) is an 83-amino-acid analog of human Insulin-like Growth Factor 1 featuring an N-terminal extension and an Arg substitution at position 3. These modifications reduce IGFBP binding, extending circulating half-life roughly 12-15x versus native IGF-1. Widely used in cell-culture and preclinical studies of anabolic signaling. For laboratory research use only.
Does IGF-1 LR3 come with a COA?
Yes. Every batch ships with an independent Certificate of Analysis (HPLC-MS, mass-spec confirmation, endotoxin and heavy-metals screening). The batch number on the vial matches your order.
How is IGF-1 LR3 stored?
Lyophilized IGF-1 LR3 is stable at 2–8°C for 24+ months. Room-temperature transit does not affect potency. After reconstitution, store at 2–8°C and use within 30 days.







