If you have an interest, there are two common formulations of CoQ10. The cheapest, most easily had, and most popularly consumed, is the 'ubiquinone' formulation. However, research over the past decade suggests that the other, more costly, and less known formulation, 'ubiquinol', (an alcohol formulation) is significantly more effective. I purchase mine from Costco on-line (delivery locally). I live in British Columbia, and the Webber Naturals brand is what can be delivered to me locally. You may find a cheaper and different brand nearby. But please do consider the additional cost. The literature says it's worth it.