I always buy this Q10 to my long-term migraine, it has had four months super good helping of 15 times a month, only 4 times. I had again a new Lebensgefühl.Doch now since about 2 weeks I feel the Q10 no longer seems so strong. Have now been 8 Sumatriptane taken this month, normally I only 4 !!!! But I'll take it on. Delivery TOP !!! Real quick !!!