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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.

Lower price per vial than single vials

Research Compounds

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PEG-MGF

(PEGylated Mechano Growth Factor)

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

IGF-1 LR3

★★★★★ ★★★★★ 5 1 review

(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.

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.

Focus: growth-factor cascades and muscle repair markers in lab work.

Useful when comparing IGF-family tools side by side.

Pack options and pricing update from live catalogue data.

Laboratory research only - no human-use claims.

Research guides: Muscle & IGF Research

IGF-1 DES vs IGF-1 LR3

Tissue repair and recovery research hub

How to read a peptide Certificate of Analysis

How to store research peptides

Published Certificates of Analysis

Research peptide glossary

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Research peptides. Third-party Certificates of Analysis (Janoshik Analytical & Freedom Diagnostics) are published on the website. Supplied strictly for laboratory research use.

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