can i take 2 glutathione a day Arencia Vitamin C Booster Shot Serum with Glutathione, Niacinamide and Vitamin E for Dark Spot Care, Fine Lines & Wrinkles, Glass Skin, Korean Skincare 30ml/1.01 fl.oz : Beauty & Personal Care Glutathione: Benefits and Supplements

However, he states that these effects are personal to his experience, and the efficacy of NAD+ supplements may vary across individuals

Mita T, Katakami N, Yoshii H, Onuma T, Kaneto H, Osonoi T, Shiraiwa T, Kosugi K, Umayahara Y, Yamamoto T, Yokoyama H, Kuribayashi N, Jinnouchi H, Gosho M, Shimomura I, Watada H (2016) Alogliptin, a dipeptidyl peptidase 4 inhibitor, prevents the progression of carotid atherosclerosis in patients with type 2 diabetes: the study of preventive effects of alogliptin on diabetic atherosclerosis (SPEAD-A)

And my friend Tommy put it this way, he's like the same thing that got him addicted

Some people may notice improvements in energy levels or skin appearance within 2-4 weeks, while more significant changes in immune function or overall health may take 2-3 months of consistent supplementation

These include: Mild nausea or digestive discomfort (more common with oral forms) Dizziness or lightheadedness Injection site irritation, redness, or swelling Possible changes in appetite These side effects typically go away on their own and do not pose long-term risks

Krijt J, Vackova M, Kozich V (2001)