igf-1 lr3 / des in Aesthetic and Anti-Aging Medicine: Benefits and Risks QK041 - Recombinant human/bovine/porcine IGF-1
Description
Drug Tolerance with repeated use has been reported, and most likely results from down-regulation and/or internalization of alpha receptors

Kopatz V, Wen K, Kovcs T, Keimowitz AS, Pichler V, Widder J

Reproduction 141 , 207216 (2011)

Its a different quality than what a stimulant provides: calmer, more stable, and not followed by a crash

Lands et al., 1999
Conventional glutathione supplements vow miracles, but they usually bring only disappointment because of low glutathione efficacy
