
Growth Factor Research
IGF-1 LR3 (Long R3 IGF-1)
1mgBuy IGF-1 LR3 from UK stock, sent the same day you order. 99.99% pure, with the signed lab certificate on this page.
Chemical identity: UniProt P05019
Vial size
Quantity
Handling
IGF-1 LR3 storage
- Sealed vial
- -20°CProtect from light
- Before opening
- Room temperatureStops condensation getting in
- Once reconstituted
- 2–8°CUse within 28 days
- Shipping
- Tracked 24Royal Mail, dispatched the same day

The range
One vial, or the set.
Every vial in the range is lyophilised, labelled and lot-numbered the same way, with the certificate for its lot linked from its own product page. Pictured: BPC-157, TB-500, GHK-Cu, Glow and Retatrutide.
Browse the rangeIGF-1 LR3 UK: common questions
- What's the IGF-1 LR3 price?
- £49.99 for one 1mg vial. Packs cost less per vial: 2 for £89.98, 3 for £119.98 or 5 for £174.97, which is £34.99 a vial.
- Is IGF-1 LR3 the same as Long R3 IGF-1?
- Yes, it's the same protein. Long is the 13-amino-acid extension and R3 is the arginine at position 3. You'll also see it written IGF1 LR3, IGF LR3 or LR3 IGF-1. It isn't plain IGF-1, which is shorter and binds IGF-binding proteins more tightly.
- IGF-1 LR3 vs native IGF-1 →
- How fast is delivery?
- Same day, from Manchester, whenever you order. Royal Mail Tracked 24 aims for next working day delivery. Free over £40, otherwise £3.99.
- What else do I need with IGF-1 LR3?
- Bacteriostatic water, to dissolve the freeze-dried powder. We stock it, and you can add it from the Storage section above.
- How should I store IGF-1 LR3?
- Sealed vial: -20°C, away from light. Once reconstituted: 2-8°C, use within 28 days. Avoid repeated freezing and thawing, which can unfold the protein.
- IGF-1 LR3 storage and handling →
- Can I buy IGF-1 LR3 in the UK?
- Yes, for laboratory research. IGF-1 LR3 isn't a controlled drug or a licensed medicine, so it's sold for research use only, not for human use. You must be 18 or over.
- IGF-1 LR3 regulatory status →
About the IGF-1 LR3 peptide
IGF-1 LR3 is an 83-amino-acid recombinant protein. It's human IGF-1 with arginine in place of glutamate at position 3, plus a 13-amino-acid extension at the start. Together, these changes weaken its binding to IGF-binding proteins. It was developed in Adelaide, Australia, and described in 1992. We sell it as freeze-dried powder in a 1mg vial, for laboratory research only.
Research areas
- Serum-free cell culture media
- CHO cell recombinant protein production
- IGF-binding protein interaction studies
- IGF-1 receptor signalling assays
Every batch independently tested by an accredited independent laboratory before dispatch. The signed certificate for this lot is published on this page.
Legal notice
This product is sold strictly for in-vitro laboratory research purposes only. It is not approved for human or veterinary use, is not a drug, food, or cosmetic, and should not be misused as such. UK Peptides accepts no liability for misuse. By purchasing you confirm you are a qualified researcher aged 18 or over.
IGF-1 LR3 1mg
£49.99


