IGF-1 LR3 1mg (10 Vials / Kit)
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IGF-1 LR3 is a long-acting analogue of insulin-like growth factor 1, studied for its potent effects on cell growth, proliferation and protein synthesis.
- Molecular Formula: C₄₀₀H₆₂₅N₁₁₁O₁₁₅S₉
- Molecular Weight: 9111.4 g/mol
- Structure: 83 amino acids
- Purity: ≥99% (HPLC)
- Appearance: White lyophilized powder
- Storage: Store at -20°C, protect from light
- Pack Size: 10 vials × 1mg
Quality: Third-party HPLC test report (Janoshik) available on request · View our lab reports
Bulk order or question? Chat with us on WhatsApp
What is IGF-1 LR3?
IGF-1 LR3 (Long R3 IGF-1) is an 83-amino-acid analogue of human IGF-1 with an arginine substitution at position 3 and a 13-amino-acid N-terminal extension.
Mechanism of Action
These modifications greatly reduce binding to IGF-binding proteins, increasing bioavailability and extending half-life to around 20–30 hours compared with minutes for native IGF-1. It activates the IGF-1 receptor to drive PI3K/Akt and MAPK signalling.
Research Applications
IGF-1 LR3 is widely used in cell culture and in research on muscle hypertrophy, satellite-cell proliferation, protein synthesis and tissue growth.
Storage & Handling
Supplied as a lyophilized (freeze-dried) powder for maximum stability. Store unopened vials at -20°C, protected from light. Once reconstituted with bacteriostatic water, keep refrigerated at 2–8°C and use within the timeframe appropriate to your study protocol.
Research Use Only
This product is intended as a research chemical only. This designation allows the use of research chemicals strictly for in vitro testing and laboratory experimentation only. All product information available on this website is for educational purposes only. Bodily introduction of any kind into humans or animals is strictly forbidden by law. This product should only be handled by licensed, qualified professionals. This product is not a drug, food, or cosmetic and may not be misbranded, misused or mislabeled as a drug, food or cosmetic.
| Pack Size | 10 vials × 1mg |
|---|---|
| Form | White lyophilized powder |
| Purity | ≥99% (HPLC) |
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Please review the following before ordering.
- Research use only. All products are supplied strictly for in-vitro laboratory research and are not for human or veterinary use.
- Storage. Store lyophilized peptides at -20°C, protected from light. Once reconstituted, keep refrigerated at 2–8°C.
- Reconstitution. Use sterile bacteriostatic water (see Research Supplies) and aseptic technique.
- Quality. Third-party Janoshik test reports are published on our Certifications page.
- Shipping. Safe and express shipping to the USA and Europe.
Questions? Chat with us on WhatsApp or email info@hk-peptides.com.
Safe & Express Shipping
Delivered to the USA and Europe.
WhatsApp Support
Fast answers from our team.
Third-Party Tested
Janoshik HPLC lab reports.
Own Factory Production
Competitive research pricing.
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Product Size Guide
Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.
| Category | Small | Medium | Large |
|---|---|---|---|
| Decor & Accessories | Up to 10″ | 10″ – 20″ | 20″+ |
| Tables | Up to 30″ | 30″ – 60″ | 60″+ |
| Seating | 1 Seater | 2–3 Seater | 4+ Seater |
| Storage Units | Compact | Standard | Large Capacity |
| Lighting | Small Fixture | Standard Fixture | Large Fixture |
Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.

IGF-1 LR3 1mg (10 Vials / Kit)
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