Real hard to say. I am a person who usually relies on studies and scientific evidence. I do not believe in homeopathy, vitamin pills or of any additional products. But I had last winter a phase where I was 3 months terribly ill. 4 times has haunted me a bacterial tonsillitis. Several times a penicillin cure, then again another antibiotic. For this work and family stress. I thought I never come back in life to his feet. In desperation, I thought, now I'll try just about anything out. Then I made a 30-day cure with this phial. By the way you have to shake the great and rapidly-exes. The taste bitter. Bäääh. As a disgusting orange juice. I like to imagine it to me, but these things have helped real. I felt like I had more energy and how I was fitter and more powerful. As I said - maybe it was the placebo effect. But I've really noticed what. So after 7 days the effect occurred slowly. Side effect: The urine is normal to be neo-yellow .. Seems.