IGF-1 LR3

Long-acting IGF-1 analog with reduced binding-protein affinity — direct anabolic signaling, much stronger than native IGF-1.

IGF-1 is the hormone that does most of growth hormone's actual muscle-building work — GH largely just tells the liver to make IGF-1. This version (Long R3) is engineered to dodge the binding proteins that normally switch native IGF-1 off within minutes, so it stays active for a day or more and signals far more powerfully. The payoff is strong, direct muscle growth — bigger fibres and more of them — plus fast recovery. The catch is that you've bypassed the body's own safety dial: it pushes growth in everything it reaches, which is why it carries the real risks below.

Dose

20–50 mcg subQ daily (some protocols site-inject near a worked muscle).

Reconstitute

1 mg + 1 mL = 1 mg/mL. 5 units = 50 mcg.

Schedule

4-week cycles max, then ≥4 weeks off.

Half-life

~20–30 hours.

Timing

Post-workout, ideally with carbs.

Educational reference — not medical advice. Many peptides are not approved for the uses discussed; verify status in your jurisdiction and decide anything here with a qualified clinician.

within Growth Hormone — Direct Anabolic