IGF-1 LR3 vs IGF-1 DES (1-3) vs HGH (Somatropin) vs Mecasermin (Native rhIGF-1) Feature Type IGF-1 LR3 Synthetic IGF-1 analog IGF-1 DES (1-3) Truncated IGF-1 variant HGH (Somatropin) Recombinant growth hormone Mecasermin (Increlex) Recombinant native human IGF-1 Feature Amino acids IGF-1 LR3 83 IGF-1 DES (1-3) 67 HGH (Somatropin) 191 Mecasermin (Increlex) 70 (identical to endogenous IGF-1) Feature Half-life IGF-1 LR3 20-30 hours IGF-1 DES (1-3) ~20-30 minutes HGH (Somatropin) 2-3 hours Mecasermin (Increlex) ~5.8 hours Feature Receptor potency IGF-1 LR3 ~3x native IGF-1 IGF-1 DES (1-3) ~10x native IGF-1 (locally) HGH (Somatropin) Indirect (drives endogenous IGF-1) Mecasermin (Increlex) 1x (it is native IGF-1) Feature Action IGF-1 LR3 Systemic, long-acting IGF-1 DES (1-3) Localized, rapid HGH (Somatropin) Systemic upstream cascade Mecasermin (Increlex) Systemic, replacement therapy Feature Dosing frequency IGF-1 LR3 Once daily IGF-1 DES (1-3) 2-3x daily HGH (Somatropin) 1-2x daily Mecasermin (Increlex) Twice daily SubQ Feature Common dose context IGF-1 LR3 20-100 mcg/day (research) IGF-1 DES (1-3) 50-150 mcg/day split (research) HGH (Somatropin) 2-8 IU/day (research) Mecasermin (Increlex) 0.04-0.12 mg/kg twice daily (clinical) Feature IGFBP binding IGF-1 LR3 Very low IGF-1 DES (1-3) Very low HGH (Somatropin) N/A (acts upstream) Mecasermin (Increlex) Normal (full IGFBP affinity) Feature FDA status IGF-1 LR3 Not approved IGF-1 DES (1-3) Not approved HGH (Somatropin) FDA-approved (multiple indications) Mecasermin (Increlex) FDA-approved (pediatric severe primary IGFD) Feature WADA status IGF-1 LR3 Prohibited IGF-1 DES (1-3) Prohibited HGH (Somatropin) Prohibited Mecasermin (Increlex) Prohibited Feature Practical note IGF-1 LR3 Long-acting IGF-1 analog with the most accumulated community data IGF-1 DES (1-3) Localized, rapid signaling
Well discuss the science behind their interactions, how to optimize their intake, and the roles they play in overall health and vitality
Yes, clonidine overdose can be fatal if not treated promptly
PMID: 41958431 Tumour Virus Res Ad-VT oncolytic adenovirus suppresses bladder cancer via cAMP-dependent AMPK-Raptor activation and G2/M arrest
10 WADA Prohibited ListGrowth hormone (somatropin) is a prohibited substance in competitive sport
Even though there are many different factors that have been linked to the pathogenesis of Parkinsons disease, it was the discovery of the neurotoxic effects of MPTP that got the most attention and started a new era of research (Langston et al., 1983
