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igf-1 lr3 safe IGF1 Human IGF-1 LR3 Explained: Muscle Growth,
Description
Maintenance Phase: Once the desired skin tone is achieved, maintenance doses (usually once every 2-4 weeks) help sustain results

Clinical Nut
doi: 10.1046/j.1523-1747.2003.12088.x

Eur J Clin Pharmacol 1978