IGF-1 LR3 Dosage Calculator
Calculate your daily IGF-1 LR3 dose and the exact units to draw on an insulin syringe, based on your goal, experience, and reconstitution.
What is IGF-1 LR3?
IGF-1 LR3 (Long R3 Insulin-like Growth Factor-1) is a modified, 83-amino-acid analog of natural IGF-1. The structural changes give it a far longer half-life, around 20 to 30 hours, compared to minutes for native IGF-1. This extended activity is why it is dosed once daily rather than multiple times per day.
IGF-1 LR3 signals through the IGF-1 receptor to drive cellular growth, protein synthesis, and nutrient uptake. Because it also influences glucose regulation, drawing an accurate dose matters: too much raises the risk of hypoglycemia. Reconstitution sets your concentration, and your concentration determines how many units you draw on the syringe.
Read the full IGF-1 LR3 profile, see realistic outcomes in our IGF-1 LR3 results guide, and learn the manual math in our how to calculate IGF-1 LR3 dosage walkthrough.
How to Use This Calculator
- 1.Enter your body weight for context. IGF-1 LR3 is dosed mainly by goal and experience rather than a fixed mcg-per-kg formula.
- 2.Select your goal and experience level. These set your recommended daily microgram dose within researched ranges.
- 3.Enter your vial size in milligrams and how much bacteriostatic water you used. Less water means a more concentrated solution and fewer units to draw.
- 4.Click "Calculate My Dose" to see your daily dose, the exact units to draw on a U-100 insulin syringe, concentration, and weekly total.
IGF-1 LR3 Dosage Quick Reference
Frequently Asked Questions
What is the typical IGF-1 LR3 dosage?
Most research protocols use 20 to 100 mcg per day. Beginners usually start at 20 to 40 mcg daily, intermediate users run 40 to 60 mcg, and advanced users go up to 80 to 100 mcg. IGF-1 LR3 is commonly dosed once daily on a 5-days-on, 2-days-off schedule across a 4 to 6 week cycle.
How many units of IGF-1 LR3 should I draw on an insulin syringe?
It depends on your reconstitution. After mixing a 1 mg vial with 1 mL of bacteriostatic water, you have 1000 mcg per mL, or 10 mcg per unit on a U-100 insulin syringe. A 40 mcg dose would be 4 units. This calculator does the math for any vial size and water volume.
How do I reconstitute IGF-1 LR3?
Add bacteriostatic water slowly down the inside wall of the vial, then swirl gently until the powder dissolves. Using less water makes the solution more concentrated and reduces the units you draw. Most users add 1 to 2 mL to a 1 mg vial. Store reconstituted IGF-1 LR3 refrigerated.
Is IGF-1 LR3 dosing based on body weight?
Not strictly. Unlike some compounds, IGF-1 LR3 is usually dosed by experience level and goal rather than a fixed mcg-per-kg formula. Body weight provides context, but the daily microgram amount and your reconstitution concentration matter more for measuring an accurate dose.
What are the risks of dosing IGF-1 LR3 incorrectly?
The main acute risk is hypoglycemia, since IGF-1 influences glucose regulation. Drawing too many units, miscalculating concentration, or confusing insulin syringe units with milligrams can lead to a much larger dose than intended. Always double-check your math and keep fast-acting carbohydrates on hand.
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