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Muscle & IGF Research Peptides

IGF-family research compounds used in muscle-cell and tissue-growth models. Each is an engineered variant of insulin-like growth factor 1 or the related mechano growth factor, modified to change how strongly it binds IGF-binding proteins or how long it persists. Strengths and formats are listed per product. Laboratory research use only, not for human use.

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IGF-1 LR3

(Insulin-like Growth Factor-1 Long Arg3)

Long-acting IGF-1 analogue with reduced IGF-binding-protein affinity, studied for IGF-1 receptor signalling and cell proliferation in vitro.

PEG-MGF

(PEGylated Mechano Growth Factor)

PEGylated mechano growth factor analogue with extended circulation, studied for satellite-cell activation in muscle research models.

IGF-DES

(DES(1-3)IGF-1, Truncated IGF-1)

IGF-1 minus its N-terminal tripeptide - roughly 100-fold lower binding-protein affinity, giving a short, locally potent signal.

What you will find here

IGF-1 LR3 is an 83-amino-acid IGF-1 analogue with an arginine at position 3 and an N-terminal extension; both reduce binding to IGF-binding proteins and lengthen its half-life to roughly a day. IGF-DES lacks the first three N-terminal residues, which also lowers IGF-binding-protein affinity but leaves a very short half-life, so it suits models where local exposure is the variable. PEG-MGF is mechano growth factor conjugated to polyethylene glycol, extending a native half-life of minutes to hours. Choosing between them is mostly a question of binding-protein affinity and duration, which each product page sets out.

Research guides: Muscle & IGF Research

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PRECISION. PURITY. PERFORMANCE.

Research peptides at >99% HPLC-verified purity, third-party tested by Janoshik Analytical & Freedom Diagnostics, with Certificates of Analysis published per released batch. Supplied strictly for laboratory research use.

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Research use only - all claims made on this site are for testing and research use only. Purchasers must be 21 years of age or older.

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[image: IGF-DES research protein vial - truncated DES(1-3) IGF-1 analogue, >98% pure]