IGF-1 LR3
A long-acting IGF-1 analogue studied for anabolic signalling and measured body-composition support — framed for clinician-guided recovery protocols.
For clinician-guided use
Discuss dosage, timing, and suitability with a qualified healthcare provider before ordering. Read the guidance.
Subscribe & save — €161 on recurring 60-day delivery. Configured at checkout.
- Availability
- Ships within 1 business day
- Storage
- Store 2–8 °C. Use reconstituted vial within 14 days.
- Ships from
- European fulfilment centre, cold-chain express
Lab proof, by batch
- Tested independently, by batch
- Certificate of analysis available
- Purity and identity on record
Long-acting IGF-1 analogue.
IGF-1 LR3 (Long R3 IGF-1, CAS 946870-92-4) is a recombinant 83-amino-acid analogue of insulin-like growth factor 1 with an N-terminal extension and Arg3 substitution, extending plasma half-life and reducing IGFBP binding. Research has examined anabolic signalling, muscle-protein synthesis, and connective-tissue response. Formula C400H625N111O115S9, MW 9111.04 g/mol.
- — Tomas et al. — Long R3 IGF-1 bioactivity and reduced IGFBP affinity
- — Bach et al. — IGF-1 analogue signalling in skeletal muscle protein synthesis
Research context only. Not medical advice. Consult a qualified clinician before use.
- 1 mg lyophilised powder per vial
- Reconstitute with bacteriostatic water before use
- Store lyophilised at 2–8 °C, keep from light
- Once reconstituted, refrigerate and use within 14 days
- One 1 mg lyophilised IGF-1 LR3 vial
- Tamper-evident cap with batch-coded label
- Storage and clinician-consultation card
Simple, deliberate steps — not a protocol.
These are practical handling notes. Dosing decisions stay between you and your clinician.
- 1
Reconstitute as directed by your clinician — low-volume reconstitution recommended for dosing precision
- 2
Administer subcutaneously at the agreed site and cadence under clinical protocol
- 3
Refrigerate reconstituted vial; use within 14 days
Every batch is analysed by an independent ISO/IEC 17025-accredited laboratory. Identity, purity, and mass-spec results are published on the product page before you buy.
Every batch is verified by an ISO/IEC 17025-accredited laboratory before release. Identity, purity, and documentation travel with the product — not behind a form.
Sensitive peptides ship in insulated cold-chain packaging with gel packs sized for a 48-hour transit window, tracked door to door.
Everything worth asking before you order.
Shipping, storage, quality, and when to speak to a clinician — without the runaround.
What proof of quality comes with my order?
Every batch ships with a batch code printed on the vial. The matching third-party certificate of analysis — identity, HPLC purity, and mass-spec results — is linked on the product page and also available from your order page after purchase.
Should I speak to a clinician before using a peptide?
We recommend it — especially if you are pregnant, nursing, managing a medical condition, or combining peptides with prescribed medication. Our product pages are educational. They are not medical advice and they do not replace a conversation with a qualified practitioner.
How should I store my order when it arrives?
Sensitive peptides ship cold. Move them to a fridge on arrival (2–8 °C) unless the product page states otherwise. Lyophilised vials can tolerate short transit at ambient temperature but should not be left unrefrigerated for extended periods once delivered.