How much do they cost? February 20, 2021 03:13 Updated Follow For a three-month supply, riboflavin is $30, magnesium is $35, and CoQ10 is $30. We’ll ship your supplements directly to you every three months so you never run out. Ready to get supplements? Order here. Related articles Do I need a prescription for the supplements? What supplements do you offer? Do I need to complete a doctor consultation to get the supplements? What are the supplements used for/what do they treat? Can I take the supplements with this specific medication/other medications?