IGF-1 LR3

IGF-1 LR3 Peptide – Injectable (0.1 mg × 10 Vials / 1 mg × 10 Vials)

IGF-1 LR3 (Insulin-Like Growth Factor-1 Long R3) is a synthetic 83-amino-acid peptide engineered with an arginine substitution at position 3 and a 13-amino-acid N-terminal extension. These structural modifications prevent binding to IGF-binding proteins, increase metabolic stability, and extend the active half-life dramatically compared to native IGF-1. This produces stronger receptor activation and greater anabolic and regenerative potency.

Available Formats:

0.1 mg × 10 sterile vials
1 mg × 10 sterile vials

Chemical Composition:

Sequence: Tyr-Leu-Pro-Thr-Ala-Pro-Glu-Thr-Leu-Cys-Gly-Phe-Tyr-Gly-Lys-Phe-His-Ser-Gln-Lys-Ser-Ile-Glu-Thr-Leu-Glu-Asp-Ala-Leu-Tyr-Leu-Val-His-Lys-Arg-Arg-Leu-Glu-Met-Phe-Gly-Ser-Pro-Lys-Val-Gly-Ser-Arg-Arg-Ala-Pro-Gly-Glu-Leu-Asp-Leu-Leu-Tyr-Ser-Ala-Leu-Gln-Arg-Arg-Glu-Ser-Leu-Leu-Pro-Gln-Glu-Gly-Ala-Leu-Gln-Phe-Tyr-Lys-Pro-Arg
Molecular Weight: ~9.2 kDa

Administration (Injectable):

Supplied as a lyophilized peptide intended for subcutaneous or intramuscular injection after reconstitution with bacteriostatic water. Research dosing commonly ranges from 20–100 mcg per day, often split across multiple administrations depending on concentration and experimental design.

Benefits & Key Features:

High affinity for IGF-1 receptors with strong biological activity
Exceptional resistance to degradation for prolonged effect
Supports cellular repair, muscle growth, and protein synthesis
Frequently used in research on tissue regeneration and fat metabolism
Highly stable lyophilized formula in sealed sterile vials

Product Notes:

For research and laboratory use only.
Must be reconstituted before administration.
Sterile, injectable-grade peptide.