Compound atlas
Growth

IGF-1 LR3

Also known as · Long R3 IGF-1

HormonePrescription drug
Half-life
24h
approx. mean t½
Dose range
20–50 mcg
typical, not prescriptive
Category
Growth
primary use-case
Single-dose decay
t½ = 24h · first-order model
~4d
to clear
1× t½
50%
remaining
2× t½
25%
remaining
~4× t½
6%
remaining
0%25%50%75%100%0m24h2d3d4d5d

How a single dose clears, assuming first-order elimination. The half-life is the biggest driver of how often you dose — start a cycle to see your own cumulative concentration curve.

Overview

A long-acting analog of insulin-like growth factor 1 with reduced binding-protein affinity, extending its activity. Potent and requires care.

Mechanism of action

Activates IGF-1 receptors to drive cell growth, hyperplasia, and nutrient uptake; overlaps with insulin signaling.

Typical protocol

20–50 mcg subQ daily in short cycles; hypoglycemia risk demands caution.

Storage

Reconstituted: refrigerated; keep stable, avoid freeze-thaw.

Disclaimer

This page summarizes publicly available information. None of it constitutes medical advice, prescription, or recommendation to acquire, possess, or use any compound. Many peptides described are research chemicals not approved for human use in the EU. Consult a licensed physician.