SAVE 20%IGF-1 LR3
125mcg · The long-acting growth factor
IGF-1 LR3 is the long-acting insulin-like growth factor variant — engineered for extended half-life and sustained anabolic signalling in research models.
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For laboratory and research purposes only. Not for human consumption. Not a therapeutic good. You must be 18+ to purchase.
ABOUT IGF-1 LR3
IGF-1 LR3 (Long R3 Insulin-Like Growth Factor 1) is a modified form of IGF-1 with an arginine substitution and N-terminal extension that dramatically reduces binding-protein interaction and extends its active half-life from hours to over a day in research models. It is the most-studied systemic growth-factor variant for lean-tissue, recovery and nutrient-partitioning research. Supplied lyophilised at 125mcg with batch COA documentation.
Research highlights
- Extended half-life IGF-1 variant
- Sustained anabolic signalling in studies
- 125mcg lyophilised vial
- Third-party tested with batch COA
HOW IT'S STUDIED
Long R3 IGF-1 — modified IGF-1 with reduced binding-protein interaction and an extended active half-life, driving sustained systemic anabolic signalling.
Lyophilised: store at -20°C. Once reconstituted, refrigerate at 2–8°C and use within 2 weeks.
Studied applications
- Lean tissue accrual
- Recovery & repair research
- Nutrient partitioning models
DIAL IN YOUR PROTOCOL
Work out concentration, draw volume and doses per vial for your IGF-1 LR3 research protocol. Adjust the inputs to match your setup.
RECONSTITUTION & DOSAGE CALCULATOR
125mcg/ml
0.320ml
32units
3doses
Reconstitution guideSlowly inject the 1ml of bacteriostatic water down the inside wall of the IGF-1 LR3 vial (do not aim directly at the powder). Gently swirl — never shake — until fully dissolved. Refrigerate after reconstitution; use within 2 weeks. Draw 32 units on a U-100 insulin syringe for a 40mcg research dose.
Figures are for laboratory reference only. Not dosing advice. For research use only — not for human consumption.
WHAT RESEARCHERS SAY
2 reviews
The real LR3
Purity docs check out and reconstitution was perfect. This is the variant my study calls for.

Excellent
Consistent quality, fast shipping, proper cold pack. Reordered twice now.

Vial packaging and presentation are subject to change depending on availability — same trusted quality and purity in every batch. All orders ship tracked within 7–14 business days (free over $250, otherwise $15 flat). Products are supplied for laboratory research use only.


