99%+ purity · USA shipping

IGF & Insulin-Class Peptides

Research-grade lyophilized peptides. Third-party tested, COA available on request, shipped within 24 hours from our USA facility.

IGF & Insulin-Class Peptides

Growth factors such as IGF-1 LR3 are studied as tool compounds in cell-signaling and proliferation research. This category features research-grade material supplied at 99%+ purity with a batch-specific Certificate of Analysis. For laboratory research use only.

3rd-party tested · COA on request 24 h dispatch from USA Free shipping on orders over $150 Crypto & card checkout

Working out dilutions before you order? Use the free peptide reconstitution calculator to convert any vial mass and diluent volume into concentration, draw volume and U-100 syringe graduations.

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Frequently Asked Questions

What is IGF-1 LR3?

IGF-1 LR3 is a modified analog of insulin-like growth factor 1 carrying an arginine substitution and an N-terminal extension. Those modifications are described in the literature as reducing binding to IGF binding proteins relative to the native sequence.

Why is this class handled differently from short peptides?

IGF-class material is a folded protein rather than a short linear chain, so its behavior in an assay depends on preserved tertiary structure. Repeated freeze-thaw cycling, vigorous agitation and elevated temperature are the usual handling concerns.

How should IGF-1 LR3 be reconstituted for research use?

Reconstitution is done gently, running the diluent down the vial wall rather than onto the powder directly, and the vial is swirled rather than shaken. Aliquoting after reconstitution avoids repeated freeze-thaw of the whole stock.

What documentation ships with the material?

Each lot carries a batch-specific Certificate of Analysis with purity by HPLC and identity by mass spectrometry, tied to the lot number printed on the vial. Supplied for laboratory research use only.