Buy IGF-1 LR3 1mg for Muscle Growth & Cellular Regeneration with Discreet Worldwide Shipping
What is IGF-1 LR3?
IGF-1 LR3 (Long Arg3 Insulin-like Growth Factor-1) is a synthetic analog of human IGF-1 designed for extended half-life and enhanced bioactivity. This peptide consists of 83 amino acids, with a substitution of arginine at position 3 and a 13-amino acid extension at the N-terminus, which prevents binding to IGF-binding proteins (IGFBPs).
Because of this modification, IGF-1 LR3 remains active in circulation for up to 24–30 hours, making it a valuable research peptide for studying growth, regeneration, and protein synthesis.
How Does IGF-1 LR3 Work in the Body?
IGF-1 LR3 mimics the natural actions of insulin-like growth factor 1, a hormone that mediates many anabolic effects of growth hormone (GH). It binds to IGF-1 receptors in muscle, bone, and connective tissues, stimulating:
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Protein synthesis for lean tissue growth
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Cellular differentiation and repair
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Glucose uptake and nutrient partitioning in muscle cells
By resisting degradation from IGFBPs, IGF-1 LR3 maintains higher activity in circulation, amplifying growth signals and recovery pathways over a longer period.
Key Benefits of IGF-1 LR3
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Supports lean muscle tissue growth and repair
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Enhances cellular regeneration and tissue recovery
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Promotes fat metabolism and improved body composition
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Facilitates wound healing and anti-aging research models
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Extends IGF-1 activity duration for consistent anabolic signaling
Product Details and Purity
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Product Name: IGF-1 LR3 1mg
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Form: Lyophilized powder for research use
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Purity: ≥99% (HPLC verified)
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Molecular Formula: C990H1528N262O300S7
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Molecular Weight: 9117.19 g/mol
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Storage: Store at -20°C (lyophilized); 2–8°C after reconstitution
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Appearance: White lyophilized powder
Dosage & Usage Guidelines
For laboratory research use only.
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Reconstitute with bacteriostatic water.
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Typical research concentration: 10–100 µg/mL.
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Designed for in vitro and in vivo studies exploring cellular growth, recovery, and metabolism.
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Not for human or veterinary use.
Safety, Side Effects & Precautions
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Handle under sterile conditions in a controlled environment.
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Store properly to maintain peptide stability.
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Possible mild local reactions at the site of administration in experimental models.
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Avoid contamination and repeated freeze-thaw cycles.
Quality Assurance & Testing
Peptide Online Store ensures:
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HPLC and Mass Spectrometry analysis for purity and molecular integrity
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GMP-compliant production
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Sterility and endotoxin testing
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Cold-chain logistics to preserve peptide stability during transport
Commitment to Quality and Compliance
Our peptides are synthesized in ISO- and GMP-certified facilities and undergo rigorous quality control. We comply with global standards for research-only biochemical distribution and ensure accurate labeling and purity verification for every product batch.
Potential Applications (For Research Use Only)
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Muscle growth and regeneration studies
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Aging and metabolic function research
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Neurological and cellular repair studies
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Growth hormone and insulin pathway analysis
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Tissue engineering and cell differentiation models
Why Choose Peptide Online Store for IGF-1 LR3 1mg?
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Verified research-grade quality with analytical reports
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Trusted global supplier with discreet packaging
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Competitive pricing and secure checkout
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Expert support for research and peptide handling inquiries
Shipping & Delivery Information
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Worldwide shipping with discreet, temperature-controlled packaging
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Order tracking and delivery confirmation
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Average delivery: 5–10 business days
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Priority express options available for select regions
How to Order Online
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Visit PeptideOnlineStore.eu
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Search for IGF-1 LR3 1mg
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Add the product to your cart
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Proceed to secure checkout and select shipping method
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Receive confirmation and tracking details
Frequently Asked Questions (FAQ)
Q1: What makes IGF-1 LR3 different from regular IGF-1?
A1: IGF-1 LR3 has a longer half-life (up to 30 hours) and does not bind strongly to IGFBPs, providing more sustained activity in research models.
Q2: How should IGF-1 LR3 be stored?
A2: Store lyophilized at -20°C; after reconstitution, refrigerate at 2–8°C for up to 14 days.
Q3: Is IGF-1 LR3 suitable for human use?
A3: No. IGF-1 LR3 is for laboratory research only and not intended for human consumption.
Related Products to IGF-1 LR3 1mg
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IGF-1 DES (1mg) – Shorter-acting IGF variant for localized research
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MGF (IGF-1 Ec) 5mg – Muscle growth and recovery research peptide
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CJC-1295 DAC 2mg – Growth hormone secretagogue peptide
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Ipamorelin 10mg – GH-releasing peptide for synergistic studies
Final Thoughts
IGF-1 LR3 1mg stands out as one of the most potent peptides for cellular regeneration, recovery, and growth studies. Its extended half-life, unmatched purity, and consistent performance make it a cornerstone in GH-related peptide research.
For researchers seeking reliability, Peptide Online Store delivers laboratory-grade IGF-1 LR3 with verified quality, fast delivery, and expert service.


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