glutathione ascorbate cycle The ascorbate–glutathione coming of age Glutathione - PMC

According to a study published in the Journal of Clinical and Aesthetic Dermatology , Vitamin C concentrations of 10% to 20% can help stimulate collagen production, fade the appearance of dark spots and other forms of hyperpigmentation as well as brighten the complexion and protect your skin from free radical damage

However, more recent evidence has demonstrated a significant physiological role for the non-genomic effects of thyroid hormone, particularly in energy homeostasis (366-368)

Systemic Use Systemic or injectable use should never occur without medical oversight and established clinical evidence

There's not much information out there on the drugs' effectiveness and even less on their safety