Late life targeting of the IGF 1 receptor improves healthspan and lifespan in female mice Nature Communications IGF 1 LR3 Injection Benefits And How It Works The HCG Institute Insulin like growth factor 1 deficiency and metabolic syndrome Journal of Translational Medicine Springer Nature Link Dr. Dwayne Jackson breaks down the real science behind IGF 1 LR3, how it compares to GH releasing peptides like CJC 1295 and GHRP 6, and where the line is between performance enhancement and real medical 40 YEARS OF IGF1: Insulin like growth factors: actions on the skeleton in: Journal of Molecular Endocrinology Volume 61 Issue 1 (2018) Measurement of IGF 1 by MSIA SRM