IGF-1 LR3
Long R3 Insulin-like Growth Factor-1
IGF-1 LR3 is a synthetic analog of human insulin-like growth factor 1, engineered with an arginine substitution at position 3 and 13 additional amino acids at the N-terminus. This 83-amino acid peptide exhibits reduced affinity for IGF-binding proteins, resulting in a prolonged half-life of 20-30 hours and approximately 3 times greater potency than native IGF-1. Currently investigational and not FDA-approved for human use.
Complete Dosing Guide
Storing IGF-1 LR3
Unreconstituted (Powder Form):
- Store in freezer at -20°C (optimal) or refrigerator at 2-8°C.
- Keep vials sealed and protected from light.
- Avoid temperature fluctuations.
- Can remain stable for 1-2 years when stored properly.
Reconstituted with Bacteriostatic Water:
- Store in refrigerator at 2-8°C immediately after reconstitution.
- Protect from light (keep in box or drawer).
- Use within 14-30 days for optimal potency.
- Do NOT freeze reconstituted solution.
- Note reconstitution date on vial.
Reconstituted with Acetic Acid (0.6%):
- Can be stored in refrigerator at 2-8°C for up to 3 months.
- Some sources indicate stability up to 1 year when reconstituted with acetic acid.
- Provides longer stability than bacteriostatic water.
- Note: Acetic acid can cause more injection site discomfort.
General Storage Tips:
- Never expose to direct sunlight or heat.
- Keep away from moisture.
- Do not shake vials vigorously.
- Store away from children and pets.
- Pre-loaded syringes can be kept unrefrigerated for several hours but should ideally remain refrigerated until use.
Medical Disclaimer
IGF-1 LR3 is an investigational research compound not approved by the FDA for human therapeutic use. This information is provided for educational purposes only and should not be construed as medical advice. IGF-1 LR3 carries significant risks including severe hypoglycemia and potential tumor growth acceleration. Any use should only occur under strict medical supervision in approved research settings. Individuals with cancer history, diabetes, or other serious medical conditions should not use this compound.