igf-1 lr3 post cycle vs HGH: Which Growth Enhancer Is Better? LR3 IGF-1 (Human), Recombinant Protein,
Description
Due to a large 44-base pair deletion, isoform B is non-functional, while isoforms A and X1 exhibit enzymatic activity

[Google Scholar] 14.Bao H

[PubMed: 2166697] 92
IGF supports the maturation process of luteinization because of increasing LHR density and decreasing preovulatory FSHR expression
