Growth Hormone
IGF-1 LR3 Dosing & Reconstitution Calculator
Long-acting insulin-like growth factor for muscle growth and recovery.
TL;DR - IGF-1 LR3 is a growth hormone peptide with a typical starting dose of 40 µg. For a 1 mg vial, add 1 mL bacteriostatic water to yield 1000 µg/mL.
40 µg
Start Dose
1 mg
Vial
1 mL
BAC Water
1000
µg/mL
Compare Similar
This Peptide
IGF-1 LR3
40 µg start
Ipamorelin
300 µg start
Coming soon
Tesamorelin
2 mg start
Coming soon
Frequently Asked
How do I reconstitute IGF-1 LR3?
Add 1 mL of bacteriostatic water to a 1 mg vial, injecting slowly down the inside wall. Swirl gently; never shake. This yields a concentration of 1000 µg/mL.
What is the recommended dose of IGF-1 LR3?
A typical research dose is 40 µg. Consult the ASCEND calculator for your specific vial concentration and draw volume.
How many doses are in a IGF-1 LR3 vial?
A 1 mg vial reconstituted with 1 mL BAC water yields approximately 25 doses at 40 µg each.
How many IU is 40 µg of IGF-1 LR3 on a syringe?
With a 1 mg vial reconstituted in 1 mL bacteriostatic water, the concentration is 1000 µg/mL. For a 40 µg dose: Volume = 40 µg ÷ 1000 µg/mL = 0.04 mL. Draw to the 4 line on a 100-unit insulin syringe. You can adjust these values in the ASCEND calculator for any vial size.
What does a IGF-1 LR3 dosage calculator do?
A IGF-1 LR3 dosage calculator converts your vial size and BAC water volume into an exact syringe draw in IU. Enter your vial strength (1 mg), reconstitution volume (1 mL), and target dose to get the precise line to draw on an insulin syringe.
What is the IGF-1 LR3 reconstitution calculator formula?
Draw volume (mL) = Dose (µg) divided by Concentration (µg/mL). For a 1 mg vial with 1 mL BAC water: concentration = 1000 µg/mL. For a 40 µg dose, the ASCEND calculator gives the exact IU line on your syringe instantly.
Peptide Intelligence
How does IGF-1 LR3 differ from native IGF-1?
IGF-1 LR3 has a 13-amino acid extension at the N-terminus and an Arg3 substitution that reduces IGF-binding protein (IGFBP) affinity. This prolongs its half-life from ~10 minutes (native IGF-1) to approximately 20–30 hours, significantly increasing bioavailability.
What is the half-life of IGF-1 LR3?
IGF-1 LR3 has a half-life of approximately 20–30 hours compared to native IGF-1's ~10-minute half-life. This extended duration results from reduced IGFBP binding, allowing more free active peptide in circulation throughout the day.
What are the main considerations for IGF-1 LR3 injection sites?
Research protocols use subcutaneous or intramuscular injection. Intramuscular injection near target muscle groups is used in hypertrophy protocols, though evidence for site-specific effects versus systemic activity remains limited.
Also Explore
Research Guides
Bacteriostatic Water Guide
What it is & why it matters for reconstitution
How Much BAC Water for IGF-1 LR3?
1 mg vial reconstitution recipe + concentration table
IGF-1 LR3 on Insulin Syringe
40 µg draw on 30u / 50u / 100u syringes
Insulin Syringe Guide
Choosing the right gauge & volume for your draw
Multi-Lab Verification Standard
How ASCEND ensures dosing accuracy
Cite This Calculator