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DPRO Health · Peptide Cheat Sheet

IGF-1 LR3

Long-acting IGF-1 — muscle growth and recovery.

Muscle Building
Your Dosing Math
5 units = 50 mcg
1 mg vial reconstituted with 1 mL bacteriostatic water
Purpose
Muscle
Route
SubQ
Vial
1 mg
Dose
100 mcg

1 What It Does

IGF-1 LR3 is a long-acting analog of insulin-like growth factor 1. It drives muscle cell growth and hyperplasia — promoting new muscle tissue, nutrient shuttling, and recovery. The 'LR3' modification greatly extends its active half-life versus native IGF-1.

+Muscle hyperplasia +Nutrient partitioning +Recovery & repair +Extended half-life +Growth signaling

2 Typical Protocol

Recommended dose
50 mcg per dose
Frequency
Daily
Timing
AM
Duration
4–6 week cycles
Cycle length

IGF-1 LR3 is run in 4–6 week cycles rather than continuously — receptor downregulation is the reason cycles are kept short.

3 Reconstitution & Draw

Based on a 1 mg vial reconstituted with 1 mL BAC water. Draw to the units shown on a U-100 insulin syringe.

1 mg vial · 1 mL water · 50 mcg dose
BAC water addedConcentrationDraw for 50 mcg
1 mL1000 mcg/mL5 units
2 mL500 mcg/mL10 units
Note—1 mg vial = twenty 50 mcg doses
U-100 syringe: 100 units = 1 mL. The standard protocol uses 1 mL water for a 5-unit dose.
Small draw

50 mcg is a small 5-unit draw at 1 mL — use 2 mL water for an easier 10-unit pull if preferred.

4 Storage & Handling

Before mixing
Store lyophilized, cool & dark
After mixing
Refrigerate, use within 90 days
Reconstitute with
Bacteriostatic water
Handling
Inject slowly down vial wall, swirl — don't shake

5 Where to Source

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Disclaimer This cheat sheet is for educational and informational purposes only. It is not medical advice, not a prescription, and does not establish a doctor-patient relationship. Dosing ranges reflect commonly-cited figures and individual protocols vary. Many peptides are sold for research purposes only and may not be approved for human use. Consult a licensed physician before starting.
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