fasting upregulates glutathione Intermittent Regulates Metabolic Homeostasis and Improves Cardiovascular Health | Cell Biochemistry and Biophysics The neuroprotective effects of intermittent

Am J Physiol Heart Circ Physiol 2002;283:H1042H1055

Its also a common nutrient deficiency seen in those with Hashinotos

Suchard MD PhD (University of California, Los Angeles, CA) Steven Shea MD (CUIMC), RuiJun Chen MD (CUIMC), Seng Chan You MD (Ajou University, Suwon, South Korea), Nicole Pratt PhD (University of South Australia, Adelaide, Australia), David Madigan PhD (Columbia University), Harlan M

A comprehensive review on NIH/PMC documents that GHK-Cu cream applied twice daily for 12 weeks strongly stimulated dermal keratinocyte proliferation, increased skin thickness, improved skin hydration, increased collagen I production and improved skin elasticity in clinical study participants