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Research Peptide
IGF-LR3
Research Peptide · 1mg
Also known as: IGF-1 LR3 UK · IGF LR3 research
Laboratory research material for qualified analytical staff — for research use only.
- Free UK delivery on orders over £50
- In stock
- UK warehouse · tracked Royal Mail 24
Customer feedback
What researchers say about us.
Recent comments from researchers. See our Trustpilot profile for the full, independently hosted review history.
Ordered a few times now, always fast delivery on time. I get good results from the products, never had any issues.
This website is great — the products are by far the best I've found so far. Extremely fast delivery and fantastic customer support.
See all reviews on our Trustpilot profile
Tracked UK delivery
Royal Mail 24 across the UK. Free tracked delivery on orders over £50.
UK warehouse stock
Ships from UK inventory. International orders only by prior arrangement.
Same-day processing
Orders paid before 12:00 (midday) UK time typically dispatch the same business day.
Delivery care
Lost or damaged in transit? Contact support with your order number — we will help.
Supply Chain
Specifications,
verified.
Specifications for this compound, independently verified by HPLC and LC-MS before release.
- Compound Class
- IGF-LR3
- IUPAC Form
- Research Peptide
- Vial Size
- 1mg
- Purity Assay
- ≥99%
- Identity Confirmed
- LC-MS confirmed
- Appearance
- White lyophilised powder
- Storage
- −20°C lyophilised, 2–8°C reconstituted
- Certificate
- COA listed per lot
About This Material
IGF-LR3
IGF-LR3 (Insulin-like Growth Factor 1, Long Arg3) is a synthetic IGF-1 analogue carrying a 13-residue N-terminal extension and an arginine swap at position 3. Together these changes sharply lower affinity for IGF-binding proteins, lengthening functional half-life and improving receptor availability — making it a workhorse in proliferation and anabolic-signalling research.
Lyophilised powder, 1mg vial, ≥99% purity by HPLC, Certificate of Analysis on request. Dispatched from the UK, for research use only.
Research applications
- Cellular proliferation and myoblast differentiation studies
- IGF-1 receptor binding and PI3K/Akt downstream signalling
- Glucose uptake and insulin-sensitivity pathway research
- Muscle protein synthesis and anti-catabolic mechanism work
- mTOR activation and comparisons against native IGF-1
Specifications
- Form: Lyophilised powder
- Purity: ≥99% (HPLC verified)
- Storage: −20°C, protected from light and moisture
- Available sizes: 1mg
- Certificate of Analysis: available on request

IGF-LR3 1mg lyophilised vial
External Reference
Research
literature.
Compound data sourced from PubChem and PubMed's public open-access research databases.
PubMed citations mentioning IGF-LR3
Search open literature
4°C cold-chain
Heavy-duty cold-chain kept in refrigerated transit.
Sterile process
Lyophilised under sterile clean-room conditions.
Research use only
For qualified laboratory professionals, not for other use.
Cold-Chain Storage
Stored at −20°C. Shipped the same day.
Every vial is kept in temperature-controlled −20°C storage at our UK facility, from the moment it arrives through dispatch — protecting stability and purity. Orders placed before cut-off are picked, packed and shipped the same working day.
- −20°C temperature-controlled storage
- Held in stock at our own UK facility
- Same-day dispatch on orders before cut-off
FAQ
Frequently asked questions
Is IGF-LR3 for human use?
No. Research Use Only — not for human or veterinary consumption.




