IGF-1 LR3 Dosage Chart & Schedule
A modified, long-acting analog of insulin-like growth factor 1 widely used as a research reagent in cell-culture and preclinical growth studies.
As a potent, long-acting research reagent, references vary widely but commonly fall in a ~20-50 mcg once-daily range in animal and lab work. It is not established or appropriate as a human therapeutic.
Figures describe how IGF-1 LR3 is reported in the research literature and research-community references — not a recommendation for human use. For laboratory research only.
Dosage protocols
Commonly referenced research tiers. Start conservative; every compound and study context differs.
- Frequency
- Once daily
- Weekly total
- ~0.14 mg
- Cycle
- Short blocks (research reference)
A low end of the referenced research-reagent range; IGF-1 LR3 is potent, so amounts stay in the low microgram range.
- Frequency
- Once daily
- Weekly total
- ~0.28 mg
- Cycle
- Short blocks (research reference)
A commonly referenced mid-range research amount; the extended half-life supports once-daily timing.
A research reagent, not a therapeutic
- IGF-1 LR3 is widely used as a cell-culture and preclinical reagent; its dosing references come from animal and lab work.
- It is not established or appropriate as a human therapeutic.
Potent and long-acting
- The Long R3 modifications reduce binding to IGF-binding proteins, extending activity to ~20-30 hours and increasing potency.
- Because of this potency, research amounts sit in the tens-of-micrograms range, far below most peptides.
Ready to run this protocol?
Dosing is only as good as the vial. IGF-1 LR3 is third-party tested with published COAs from our top-rated source — reconstitute with confidence and skip the guesswork on identity and purity.
Weekly schedule
A typical week on the standard protocol (Once daily).
Dosing day Off
IGF-1 LR3 reconstitution
Based on a standard 1 mg vial: with 2 mL bacteriostatic water = 500 mcg/mL (0.5 mg/mL); 1 unit ≈ 5 mcg.
From vial to injection in 6 steps
Wipe both vial tops
Swab the peptide vial and the bacteriostatic-water vial with fresh alcohol and let them dry.
Draw the water
Pull the planned amount of bacteriostatic water (2 mL) into the syringe.
Add it slowly
Run the water down the inside wall of the vial — don't blast the powder. Swirl gently; never shake.
Let it dissolve
Wait until the solution is fully clear, then refrigerate the vial.
Draw your dose
Pull the calculated units on a U-100 insulin syringe (~8 units for 40 mcg).
Store between uses
Keep the reconstituted vial refrigerated and use within its stable window.
Handling & storage
- Reconstitute with bacteriostatic water (2 mL into a 1 mg vial = 500 mcg/mL); some lab protocols use dilute acetic acid or 0.1% BSA for longer stability
- Refrigerate reconstituted; keep the lyophilized powder cool and dark
- A 40 mcg dose draws to ~8 units on a U-100 insulin syringe (20 mcg = ~4 units)
IGF-1 LR3 dosing FAQ
How much IGF-1 LR3 per day?
As a research reagent, references vary widely and commonly fall in a ~20-50 mcg range in animal work, roughly 0.14-0.35 mg/week. It is not established or appropriate as a human therapeutic.
How is IGF-1 LR3 reconstituted?
With bacteriostatic water. For example, 2 mL into a 1 mg vial = 500 mcg/mL, so a 40 mcg dose is about 8 units on a U-100 syringe; some lab protocols use an acidified diluent for longer stability.
Why is IGF-1 LR3 dosed in such small amounts?
The Long R3 modifications make it potent and long-acting (~20-30 h half-life), so research amounts are in the tens-of-micrograms range, far lower than most peptides.
How often is IGF-1 LR3 administered in research?
Its extended half-life supports once-daily references in short blocks. As a lab reagent this is not a human-use recommendation.
Sources
Categories: Healing & Recovery · Status: Research use only. This page is educational and for laboratory research use only; it is not medical advice.