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IGF-1 lr3

Long R3 IGF-1, LR3-IGF-1, Insulin-like Growth Factor-1 Long Arg3

A synthetic analog of IGF-1 with extended half-life, promoting muscle growth, cell proliferation, tissue repair, and metabolic effects.

Quick Stats
Studies 41
Trials 0
Formula C400H625N111O115S9
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pubmed 2002

Modulatory effects of gonadotrophins and insulin-like growth factor on the secretion of inhibin A and progesterone by granulosa cells from chicken preovulatory (F1-F3) follicles.

Lovell. T M TM; Gladwell. R T RT; Groome. N P NP; Knight. P G PG

The study looked at chicken ovarian cells and found that a synthetic IGF‑1 molecule (LR3‑IGF‑I) can boost the hormones these cells make when they’re also given LH or FSH, but the effects vary with the cell’s stage and over time. This is basic bird biology and doesn’t give any direct advice you can use for human health or performance.