Skip to main content Skip to main content

Peptide Dosages | DosageFacts

Peptide dosage reference for the US and Canada
DOSAGEFACTS

HomePeptide dosagesIGF-1 LR31 mg vial

IGF-1 LR3 1 mg vial: mixing and syringe units

A 1 mg vial of IGF-1 LR3 mixed with 3 mL of bacteriostatic water is 0.3333 mg/mL. At that strength 20 mcg is 6 units on a U-100 syringe and 100 mcg is 30 units. The doses on this page are a reported range, not a label dose.

Last checked 10 Oct 2026

1 mg vial

Water 3 mL

Concentration 0.3333 mg/mL

US Not approved

Canada Not authorized

Checked 10 Oct 2026

IGF-1 LR3 1 mg draw chart

Each row is one dose, the volume to draw and where that sits on a U-100 insulin syringe. The last three columns show which syringe sizes can hold it in one draw.

IGF-1 LR3 1 mg vial with 3 mL of bacteriostatic water, 0.3333 mg/mL. Once daily.
DoseVolumeSyringe units0.3 mL syringe0.5 mL syringe1 mL syringe
20 mcg0.06 mL6 unitsYesYesYes
40 mcg0.12 mL12 unitsYesYesYes
100 mcg0.30 mL30 unitsYesYesYes

Source Reported range, not a label dose. Reports describe starting at 20 to 40 mcg, in 4 to 6 week cycles. No human study has been published. Vial math is arithmetic.

Open it in the calculator

How to mix a 1 mg IGF-1 LR3 vial

  1. Wash your hands. Wipe the stopper of the IGF-1 LR3 vial and the water vial with an alcohol swab.
  2. Draw 3 mL of bacteriostatic water into a syringe.
  3. Push the needle through the stopper of the peptide vial and let the water run slowly down the glass, not straight onto the powder.
  4. Swirl the vial gently until the powder is gone. Do not shake it.
  5. Write the date and 0.3333 mg/mL on the vial, then put it in the fridge.

If you add a different amount of water

More water makes each dose a bigger, easier draw. Less water makes it smaller. The milligrams in the vial do not change.

Water addedConcentration20 mcg40 mcg100 mcg
1 mL1 mg/mL2 units4 units10 units
2 mL0.5 mg/mL4 units8 units20 units
3 mL0.3333 mg/mL6 units12 units30 units

The marked row is the amount used in the chart above. Red cells are draws under 5 units, which are hard to read, or over 100 units, which one 1 mL syringe cannot hold.

How many doses are in the vial

DoseWhole doses in a 1 mg vialAt once daily
20 mcg50 doses50 days
40 mcg25 doses25 days
100 mcg10 doses10 days

IGF-1 LR3 1 mg vial questions

How many units is 20 mcg of IGF-1 LR3 from a 1 mg vial?

With 3 mL of bacteriostatic water the vial is 0.3333 mg/mL. 20 mcg is 0.06 mL, which is 6 units on a U-100 syringe.

How many units is 40 mcg of IGF-1 LR3 from a 1 mg vial?

With 3 mL of bacteriostatic water the vial is 0.3333 mg/mL. 40 mcg is 0.12 mL, which is 12 units on a U-100 syringe.

How many units is 100 mcg of IGF-1 LR3 from a 1 mg vial?

With 3 mL of bacteriostatic water the vial is 0.3333 mg/mL. 100 mcg is 0.30 mL, which is 30 units on a U-100 syringe.

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

3 mL is the amount used on this page. It gives 0.3333 mg/mL and puts the doses at 6, 12, 30 units. Any amount works as long as the math is redone for it.

What if I added 1 mL instead of 3 mL?

The vial would be 1 mg/mL instead of 0.3333 mg/mL, so 20 mcg would be 2 units instead of 6. The dose in the syringe is the same; only the volume changes.

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

Whole doses in one vial: 50 at 20 mcg, 25 at 40 mcg, 10 at 100 mcg.

More on IGF-1 LR3

This page is only the math for one vial size. Where the doses come from, what the studies found, the side effects and the sources are on the main page.

IGF-1 LR3 dosageWhat IGF-1 LR3 isHow to mix a vialHow to read a syringe

DosageFacts is an information site. It is not medical advice. Talk to a licensed professional before using any medication.