IGF-1 LR3 reconstitution calculator

IGF-1 LR3 at a glance

1mg vial + 1mL BAC water = 2 units = 20mcg — Frequency: daily — Best taken: post-workout

Full IGF-1 LR3 dosing reference — reconstitution per vial size, dose-to-units table, side effects and sources.

What it does

• A modified, longer-acting form of insulin-like growth factor 1, studied for muscle growth and tissue repair.
• The "LR3" modification resists the body's normal breakdown process, extending its activity compared to native IGF-1.
• High-risk experimental compound, not FDA-approved — carries real hypoglycemia risk and very limited human safety data.

IGF-1 LR3 has insulin-like, blood-sugar-lowering activity; the per-dose duration figures that circulate in community sources are not confirmed by any label or study. Combined with insulin or other diabetes medications, it significantly raises the risk of hypoglycemia — the label for recombinant IGF-1 reports severe lows including seizures. Anyone with diabetes or on blood-sugar-lowering medication should avoid this peptide except under direct medical supervision.

Notes

Smallest vial (0.1mg = 100mcg) is a single-use size for some protocols. All vial sizes reconstitute to 1mg/mL (10mcg/unit) so the syringe reads the same regardless of size.

Side Effects

• Hypoglycemia — the main risk, worse without food; dizziness, confusion, even unconsciousness.
• Active 20-30 hours, so blood sugar can drop repeatedly.
• Muscle and joint pain, nausea, headaches.
• May promote insulin resistance with frequent use.

IGF-1 LR3 vial sizes and concentrations

Standard water for each IGF-1 LR3 vial size in the Dosify Me data, and the concentration it gives. One unit is 0.01 mL on a U-100 insulin syringe.

Syringe units for the listed quantities, by vial size

Worked example for IGF-1 LR3

1. The example vial: 1 mg of IGF-1 LR3, mixed with 1.00 mL of bacteriostatic water.
2. Concentration: 1 mg ÷ 1.00 mL = 1 mg/mL.
3. One syringe unit is 0.01 mL, so it holds 1 mg/mL × 0.01 mL = 0.01 mg (10 mcg).
4. Example quantity: 20 mcg = 0.02 mg.
5. Volume: 0.02 mg ÷ 1 mg/mL = 0.02 mL.
6. Syringe reading: 0.02 mL × 100 = 2 units.

Label numbers from the Dosify Me data, used to show the arithmetic. Not a recommendation of any quantity.

Frequently asked

How many units is 20 mcg of IGF-1 LR3?

At 1 mg/mL (the concentration every vial size mixes to), 20 mcg of IGF-1 LR3 is 2.0 units on a 100-unit insulin syringe (0.020 mL).

How many units is 50 mcg of IGF-1 LR3?

At 1 mg/mL (the concentration every vial size mixes to), 50 mcg of IGF-1 LR3 is 5.0 units on a 100-unit insulin syringe (0.050 mL).

How many units is 80 mcg of IGF-1 LR3?

At 1 mg/mL (the concentration every vial size mixes to), 80 mcg of IGF-1 LR3 is 8.0 units on a 100-unit insulin syringe (0.080 mL).

How much bacteriostatic water do I add to a 0.1 mg vial of IGF-1 LR3?

0.10 mL, which gives 1 mg/mL. Other vial sizes use proportionally more or less water so the syringe reads the same.

How much bacteriostatic water do I add to a 1 mg vial of IGF-1 LR3?

1.00 mL, which gives 1 mg/mL. Other vial sizes use proportionally more or less water so the syringe reads the same.

How often is IGF-1 LR3 taken?

Daily. Post-workout or morning, fasted Typical cycle: ~4 weeks on, ~4 weeks off; repeat 2–3×/year.

Related pages and guides

• IGF-1 LR3 dosing reference
• How many units is 250 mcg?
• How much bacteriostatic water for a 5 mg vial?
• U-100 vs U-50 insulin syringe for peptides
• Peptide storage and refrigeration
• All peptide guides

Other calculators

General peptide calculator · BAC water calculator · Peptide dosing chart · How to reconstitute peptides · mcg to units chart