IGF-1 LR3 Calculator
Also known as: Long R3 IGF-1
What is IGF-1 LR3?
IGF-1 LR3 is a 83-amino-acid analogue of insulin-like growth factor 1 with an extended N-terminus and Arg3 substitution that gives it a longer half-life and weaker binding to IGF-binding proteins. Used in research and bodybuilding contexts; safety profile in humans is poorly characterized.
| 1 mg | lyophilized powder |
| 5 mg | lyophilized powder |
| 0.02 mg | ≈ 2 U-100 units (at 1mg / 1mL) |
| 0.05 mg | ≈ 5 U-100 units (at 1mg / 1mL) |
| 0.1 mg | ≈ 10 U-100 units (at 1mg / 1mL) |
How it's typically prepared
Reconstitute with BAC water; refrigerate. IGF-1 LR3 is potent — start low.
Frequently asked questions
- Is IGF-1 LR3 the same as IGF-1?
- No — LR3 is an engineered long-acting analogue. Native IGF-1 has a much shorter half-life.
Where researchers source this
Vendors below have been manually vetted for third-party COA practice and shipping reliability. Verify the current Certificate of Analysis on the vendor's product page before purchase.
Other GHS peptides
PeptideDose is an educational reference. It is not medical advice and does not replace consultation with a licensed healthcare provider. Doses shown in presets are derived from published protocols and product labels — they are not personal recommendations.