I have a number of severe food allergies, so finding safe supplements is often challenging. Due to severe frequent migraines, my neurologist prescribed/suggested trying "vitamin therapy" using B2, CoQ10 and magnesium -- a combination studies have proven effective at the correct doses. I tried a couple other brands of CoQ10 but had reactions to them. I then discovered Bluebonnet's CoQ10, tried it, and have had no problems. I have been using it for a few years now and it is an effective and important part of my anti-migraine vitamin therapy. As with other Bluebonnet products the "free from" labeling and their GMP are very important to me.