IGF-1 lr3

Igf-1 is basically a polypeptide hormone that has the same some of the same molecular properties as insulin. Igf dose actually stand for insulin-like growth factor. Igf-1 is mainly responsible for long bone growth in children and it also affects muscle growth and repair of adults. Long r3 igf-1 is a more potent version of igf-1. It's chemically altered I like to think "enhanced" to prevent deactivation by igf-1 binding proteins in the bloodstream. This results in a longer half-life of 20-30 hours instead of 20 min.. So that means a far more effective version than the short chain we we re perhaps more familiar with.
Long arginine 3-igf-1, abbreviated as igf-1 lr3 or lr3-igf-1, is a synthetic protein and lengthened analogue of human insulin-like growth factor 1 (igf-1).