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IGF-1 LR3 peptide calculator

A 1 mg IGF-1 LR3 vial mixed with 1 ml of bacteriostatic water holds 1 mg/ml. A 40 mcg dose is 0.040 ml — 4 units on a U-100 insulin syringe — and the vial holds 25 doses of that size.

1 mg vial + 1 ml bacteriostatic water, 40 mcg dose:
4units on a U-100 insulin syringe
= 0.040 ml per injection · concentration 1 mg/ml · 25 doses per vial
Change the vial, water or dose in the full calculator →

IGF-1 LR3 dosage chart: units to draw

Units on a U-100 insulin syringe (100 units = 1 ml) for IGF-1 LR3 doses from 20 mcg to 80 mcg, by how much bacteriostatic water is in a 1 mg vial. The highlighted row is the 40 mcg dose used above.

Dose1 ml water
1 mg/ml
2 ml water
0.5 mg/ml
3 ml water
0.333 mg/ml
Doses per vial
20 mcg2 u
0.020 ml
4 u
0.040 ml
6 u
0.060 ml
50
40 mcg4 u
0.040 ml
8 u
0.080 ml
12 u
0.12 ml
25
80 mcg8 u
0.080 ml
16 u
0.16 ml
24 u
0.24 ml
12

A 4-unit draw is hard to measure accurately — each tick on a U-100 syringe is 1 or 2 units. Mixing the same vial with 2 ml of water makes the same 40 mcg dose 8 units, which is easier to read. A 0.3 ml insulin syringe (30-unit capacity) with half-unit marks also helps.

Unit math only, not a dosing recommendation. The dose range is what published protocols and trials describe; see the IGF-1 LR3 guide for sources.

How to reconstitute IGF-1 LR3

  1. Wipe both vial stoppers with a fresh alcohol swab and let them dry.
  2. Draw 1 ml of bacteriostatic water into a syringe.
  3. Insert the needle at an angle into the IGF-1 LR3 vial and let the water run slowly down the inner wall — do not inject directly onto the powder.
  4. Do not shake. Gently swirl the vial until the peptide fully dissolves.
  5. Storage for IGF-1 LR3: Lyophilized refrigerated. Reconstituted: refrigerated, use within 14–28 days.
  6. For a 40 mcg dose, draw to the 4-unit mark (0.040 ml) on a U-100 insulin syringe.

About IGF-1 LR3

IGF-1 LR3 is a modified analog of insulin-like growth factor 1 with an extended half-life due to reduced IGF-binding-protein affinity. It is studied for anabolic and tissue-repair effects.

Half-life: Approximately 20–30 hours (substantially extended vs native IGF-1's ~10–20 minutes)
Typical dose range: 20–80 mcg per injection, typically once daily
Class: Modified insulin-like growth factor 1 analog
Regulatory status: Not FDA approved. Research use only.

Read the full IGF-1 LR3 guide → — mechanism, side effects, storage, regulatory status and citations. Or browse the whole peptide glossary.

Other tools for IGF-1 LR3

Calculators for related peptides: IGF-1 DES, CJC-1295, GHRP-2, GHRP-6, Hexarelin.

Need a different unit or a different question? The peptide dose converter moves a dose between mcg, mg and IU, and the IGF-1 LR3 half-life chart shows how concentration accumulates across a dosing cadence. Loading IGF-1 LR3 into a reusable 3 ml pen instead of drawing it with a syringe? The peptide pen calculator turns the same vial into mcg per click and clicks to dial. All of them are listed on the free peptide tools page.

IGF-1 LR3 calculator FAQ

Is this a IGF-1 LR3 peptide calculator or a reconstitution calculator?

Both. This IGF-1 LR3 calculator converts vial strength, bacteriostatic-water volume, and target dose into milliliters and insulin-syringe units. It does not recommend a medical dose.

How much bacteriostatic water for a 1 mg IGF-1 LR3 vial?

This page is pre-filled with 1 ml of bacteriostatic water for a 1 mg IGF-1 LR3 vial because that is a common research ratio. You can adjust the water amount in the full calculator.

How many units is a 40 mcg IGF-1 LR3 dose?

4 units on a U-100 insulin syringe, when a 1 mg vial is mixed with 1 ml of bacteriostatic water (1 mg/ml). That is 0.040 ml. With a different amount of water the unit count changes — the dose chart on this page lists 1 ml, 2 ml, 3 ml mixes.

How many doses are in a 1 mg IGF-1 LR3 vial?

25 doses of 40 mcg. The number of doses depends only on vial strength and dose size — adding more or less water changes the volume of each draw, not how many draws the vial holds.

Does this IGF-1 LR3 dosage calculator give medical advice?

No. It only performs unit math. Dosing, titration, and whether IGF-1 LR3 is appropriate are clinical decisions that should be made with a licensed healthcare professional.

Skip the math — let the app handle it

Peptide Protocol remembers your IGF-1 LR3 vial, shows the units for every dose, tracks what is left, and rotates injection sites for you.

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Educational use only. Peptide Protocol is an informational tool. Nothing on this page constitutes medical advice. Many peptides are prescription-only or restricted in your jurisdiction. Always consult a licensed healthcare professional before injecting any compound.